Timeline of United States inventions (before 1890)
The United States provided many inventions in the time from the Colonial Period to the Gilded Age, which were achieved by inventors who were either native-born or naturalized citizens of the United States. Copyright protection secures a person's right to his or her first-to-invent claim of the "original" invention in question, highlighted in Article I, Section 8, Clause 8 of the United States Constitution, which gives the following enumerated power to the United States Congress: In 1641, the first patent in North America was issued to Samuel Winslow by  the General Court of Massachusetts for a new method of making salt. On April 10, 1790, President George Washington signed the Patent Act of 1790 (1 Stat. 109) into law proclaiming that patents were to be authorized for "any useful art, manufacture, engine, machine, or device, or any improvement therein not before known or used". On July 31, 1790, Samuel Hopkins of Pittsford, Vermont became the first person in the United States to file and to be granted a patent for an improved method of "Making Pot and Pearl Ashes". The Patent Act of 1836 (Ch. 357, 5 Stat. 117 ) further clarified United States patent law to the extent of establishing a patent office where patent applications are filed, processed, and granted, contingent upon the language and scope of the claimant's invention, for a patent term of 14 years with an extension of up to an additional 7 years. However, the Uruguay Round Agreements Act of 1994 (URAA) changed the patent term in the United States to a total of 20 years, effective for patent applications filed on or after June 8, 1995, thus bringing United States patent law further into conformity with international patent law. The modern-day  provisions of the law applied to inventions are laid out in Title 35 of the United States Code (Ch. 950, sec. 1, 66 Stat. 792). From 1836 to 2011, the United States Patent and Trademark Office (USPTO) has granted a total of 7,861,317 patents relating to several well-known inventions appearing throughout the timeline below. Colonial Period (1500s–1775). 1749 Lightning rod 1752 Flexible urinary catheter 1761 Armonica Independence and the Federalist Era (1776–1860). 1776 Swivel chair 1782 Flatboat 1784 Bifocals 1785 Artificial diffraction grating 1787 Automatic flour mill 1792 Cracker 1793 Cotton gin 1795 Wheel cypher 1796 Rumford fireplace 1796  Cupcake 1801 Suspension bridge 1801 Fire hydrant 1802 Banjo clock 1804 Burr Truss 1805 Amphibious vehicle 1805 Vapor-compression refrigeration 1806 Coffee percolator 1808 Lobster trap 1812 Columbiad 1813 Circular saw 1815 Dental floss 1816 Milling machine 1818 Profile lathe 1827 Detachable collar 1829 Graham cracker 1830 Platform scale 1831 Flanged T rail 1831 Multiple coil magnet 1831 Doorbell (electric) 1833 Sewing machine (lock-stitch) 1834 Combine harvester 1835 Steam shovel 1835 Solar compass 1835 Relay 1836 Morse code 1836 Gridiron (cooking) 1836 Circuit breaker 1837 Self-polishing cast steel plow 1839 Corn sheller 1839 Sleeping car 1839 Vulcanized rubber  1839 Babbitt (metal) 1840 Howe truss 1842 Inhalational anaesthetic 1842 Grain elevator 1843 Ice cream maker (hand-cranked) 1843 Multiple-effect evaporator 1843 Rotary printing press 1844 Pratt truss 1845 Pressure-sensitive tape 1845 Maynard tape primer 1845 Baseball 1846 Transverse shuttle 1846 Printing telegraph 1847 Gas mask 1847 Doughnut (ring-shaped) 1848 Pin tumbler lock 1849 Jackhammer 1849 Safety pin 1850 Dishwasher 1850 Feed dogs 1850 Vibrating shuttle 1850 Inverted microscope 1851 Rotary hook 1851 Fire alarm box 1852 Elevator brake 1853 Burglar alarm 1853 Potato chips 1853 spring Clothespin 1854 Breast pump 1855 Calliope 1856 Egg beater 1856  Condensed milk 1856 Equatorial sextant 1857 Toilet paper (mass-produced and rolled) 1857 Pink lemonade 1857 Brown Truss 1858 screw top Pepper shaker 1858 Mason jar 1858 Pencil eraser 1858 Ironing board 1858 Twine knotter 1858 Dustpan 1859 Electric stove 1859 Escalator 1860 Vacuum cleaner 1860 Repeating rifle (lever action) Civil War and the Reconstruction Era (1861–1877). 1861 Jelly bean 1861 Twist drill 1861 Kinematoscope 1861 Postcard 1861 Machine gun (hand-cranked) 1863 Breakfast cereal 1863 Ratchet wrench 1863 Quad skates 1863 Double-barreled cannon 1864 Spar torpedo 1865 Cowboy hat 1865 Rotary printing press (web) 1866 Urinal (restroom version ) 1866 Chuckwagon 1867 Motorcycle (steam-powered) 1867 Paper clip 1867 Barbed wire 1867 Ticker tape 1867 Water-tube boiler 1867 Refrigerator car 1868 Paper bag 1868 Tape measure 1869 Vibrator 1869 American football 1869 Pipe wrench 1869 Clothes hanger 1870 Bee smoker 1870 Can opener (rotary, side-opening) 1870 Sandblasting 1870 Feather duster 1871 Rowing machine 1872 Railway air brake 1872 Diner 1873 Earmuffs 1873 Silo 1873 Jeans Jeans are trousers generally made from denim. Jeans became popular among teenagers starting in the 1950s which remains as a distinct icon of American fashion. In 1873, Levi Strauss and Jacob Davis  co-invented and co-patented the idea of using copper rivets at the stress points of sturdy work pants. After one of Davis' customers kept purchasing cloth to reinforce torn pants, he had an idea to use copper rivets to reinforce the points of strain, such as on the pocket corners and at the top of the button fly. Davis did not have the required money to purchase a patent, so he wrote to Strauss suggesting that they both go into business together. Early Levis, called "waist overalls", came in a brown canvas duck fabric and a heavy blue denim  fabric. His business became extremely successful, revolutionizing the apparel industry. 1873 Knuckle coupler Also known as a Janney coupler and the buckeye coupler, the knuckle coupler is the derivative of a coupling device that links and connects rolling railway cars such as passenger, refrigerator, freight, and stock cars together on railroad track. The knuckle coupler have a bifurcated drawhead and a revolving hook, which, when brought in contact with another coupler, automatically interlocks with its mate. Knuckle couplers replaced the much more dangerous link-and-pin couplers and became the basis for standard coupler design for the rest of the  19th century. The knuckle coupler was invented and patented by Eli H. Janney in 1873. 1874 Fire sprinkler (automated) A fire sprinkler is the part of a fire sprinkler system that discharges water when the effects of a fire have been detected, such as when a pre-determined temperature has been reached. Henry S. Parmelee of New Haven, Connecticut invented and installed the first closed-head or automated fire sprinkler in 1874. 1874 Spork A spork or a foon is a hybrid form of cutlery taking the form of a spoon-like shallow scoop with three or four fork tines . The spork is a portmanteau word combining "spoon" and "fork". The spork was invented in 1874 by Samuel W. Francis. U.S. patent #147,119 was filed on January 22, 1874, and issued to Francis on February 3, 1874. 1874 Ice cream soda 1874 Quadruplex telegraph 1874 Jockstrap A jockstrap, also known as a jock, jock strap, strap, supporter, or athletic supporter, is an undergarment designed for supporting the male genitalia during sports or other vigorous physical activity. A jockstrap consists of a waistband (usually elastic) with a support pouch for the genitalia and two elastic straps affixed to the base of  the pouch and to the left and right sides of the waistband at the hip. The jockstrap has been part of men's undergarments since 1874 when it was invented by C.F. Bennett of Chicago to protect and support bicycle riders (back then they were known as "jockeys") who were navigating the cobblestone streets common to the era. 1874 Forstner bit Forstner bits, also known as Forstner flange bits or webfoot augers, bore precise, flat-bottomed holes in wood, in any orientation with respect to the wood grain. Forstner bits can cut on the edge of a block of wood , and can cut overlapping holes. Because of the flat bottom to the hole, they are useful for drilling through veneer already glued to add an inlay. Forstner bits were invented and patented by Benjamin Forstner in 1874. 1874 QWERTY QWERTY is the most used modern-day keyboard layout on English-language computer and typewriter keyboards. It takes its name from the first six characters seen in the far left of the keyboard's top row of letters. The QWERTY design was invented and patented by Christopher Sholes in 1874. 1875 Biscuit cutter 1875 Dental drill (electric) 1875 Mimeograph 1876 Synthesizer  1876 Airbrush 1876 Tattoo machine 1877 Phonograph The phonograph, record player or gramophone is an instrument for recording, reproducing and playing back sounds. The earliest phonographs used cylinders containing an audio recording engraved on the outside surface which could be reproduced when the cylinder was played. Later, the gramophone record with modulated spiral grooves set atop a rotating turntable. The phonograph was invented in 1877 by Thomas Alva Edison at his laboratory in Menlo Park, New Jersey. On February 8, 1878, Edison was issued the first patent (U.S. patent #200,521) for the phonograph. 1877 District heating District heating distributes heat  generated in a centralized location for residential and commercial heating requirements. The heat is often obtained from a cogeneration plant burning fossil fuels but increasingly biomass, although heat-only boiler stations, geothermal heating and central solar heating are also used, as well as nuclear power. A system was built in France in the 14th Century and the United States Naval Academy in Annapolis, Maryland began steam district heating service in 1853. However, the first commercially successful district heating system was launched in Lockport, New York, in 1877 by American hydraulic engineer Birdsill Holly, considered the founder of modern district heating . Gilded Age (1878–1899). 1878 Carbon microphone 1878 Free jet water turbine 1878 Bolometer 1879 mechanical production of Photographic plate 1879 Carton 1879 Cash register The cash register is a device for calculating and recording sales transactions. When a transaction was completed, the first cash registers used a bell that rang and the amount was noted on a large dial on the front of the machine. During each sale, a paper tape was punched with holes so that the merchant could keep track of sales. Known as the "Incorruptible Cashier", the mechanical cash register was invented and patented in 1879 by  James Ritty of Dayton, Ohio. John H. Patterson bought Ritty's patent and his cash register company in 1884. 1880 Oil burner An oil burner is a heating device which burns fuel oil. The oil is directed under pressure through a nozzle to produce a fine spray, which is usually ignited by an electric spark with the air being forced through by an electric fan. In 1880, Amanda Jones invented the oil burner in the oil fields of northern Pennsylvania where Jones completed her trial and error efforts of heating furnaces. 1880 Candlepin bowling Candlepin bowling is a North American  variation of bowling that is played primarily in the Canadian Maritime provinces, Quebec, Maine, Massachusetts, and New Hampshire. A candlepin bowling lane somewhat resembles lanes used in tenpin bowling. However, unlike tenpin bowling lanes that are flat, candlepin lanes are slightly depressed ahead of the pindeck. The candlepins themselves take on a cylindrical shape which are tapered at the tops and bottoms, thus giving them a resemblance to wax candles. In 1880, candlepin bowling was invented by Justin White of Worcester, Massachusetts. 1881 Electric chair 1881 Metal detector 1881 Iron (electric) 1882 Fan (electric) 1883 Salt water taffy 1883 Solar  cell A solar cell is any device that directly converts the energy in light into electrical energy through the process of photovoltaics. Although French physicist Antoine-César Becquerel discovered the photovoltaic effect much earlier in 1839, the first solar cell, according to Encyclopædia Britannica, was invented by Charles Fritts in 1883, who used junctions formed by coating selenium with an extremely thin layer of gold. In 1941, the silicon solar cell was invented by another American named Russell Ohl. Drawing upon Ohl's work, three American researchers named Gerald Pearson, Calvin Fuller, and Daryl Chapin essentially introduced the first practical  use of solar panels through their improvement of the silicone solar cell in 1954, which by placing them in direct sunlight, free electrons are turned into electric current enabling a six percent energy conversion efficiency. 1883 Thermostat A thermostat is a device for regulating the temperature of a system so that the system's temperature is maintained near a desired setpoint temperature. The thermostat does this by switching heating or cooling devices on or off, or regulating the flow of a heat transfer fluid as needed, to maintain the correct temperature. The thermostat was invented in 1883 by Warren S.  Johnson. 1884 Machine gun The machine gun is defined as a "fully automatic" firearm, usually designed to fire rifle cartridges in quick succession from an ammunition belt or large-capacity magazine. The world's first true machine gun, the Maxim gun, was invented in 1884 by the American inventor Hiram Stevens Maxim, who devised a recoil power of the previously fired bullet to reload rather than the crude method of a manually operated, hand-cranked firearm. With the ability to fire 750 rounds per minute, Maxim's other great innovation was the use of water cooling to reduce overheating. Maxim 's gun was widely adopted and derivative designs were used on all sides during World War I. 1884 Dissolvable pill A dissolvable pill is any pharmaceutical in tablet form that is ingested orally, which are crushable and able to dissolve in the stomach unlike tablets with hard coatings. The dissolvable pill was invented in 1884 by William E. Upjohn. 1884 Skyscraper A skyscraper is a tall building that uses a steel-frame construction. After the Great Fire of 1871, Chicago had become a magnet for daring experiments in architecture as one of those was the birth of the skyscraper. The  edifice known as the world's first skyscraper was the 10-story Home Insurance Company Building built in 1884. It was designed by the Massachusetts-born architect William Le Baron Jenney. 1885 Popcorn machine 1885 Photographic film 1885 Mixer (cooking) 1885 Fuel dispenser A fuel dispenser is used to pump gasoline, diesel, or other types of fuel into vehicles or containers. As the automobile was not invented yet, the gas pump was used for kerosene lamps and stoves. Sylvanus F. Bowser of Fort Wayne, Indiana invented the gasoline/petrol pump on September 5, 1885. Coincidentally, the term "bowser" is still  often used in countries such as New Zealand and Australia as a reference to the fuel dispenser. 1886 Filing cabinet (horizontal) A filing cabinet is a piece of office furniture used to store paper documents in file folders. It is an enclosure for drawers in which items are stored. On November 2, 1886, Henry Brown patented his invention of a "receptacle for storing and preserving papers". This was a fire- and accident-safe container made of forged metal, which could be sealed with a lock and key. It was special in that it kept the papers separated. 1886 Telephone directory  A telephone directory is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. R. H. Donnelley created the first official telephone directory which was referred to as the Yellow Pages in 1886. 1887 Screen door A screen door can refer to a hinged storm door (cold climates) or hinged screen door (warm climates) covering an exterior door; or a screened sliding door used with sliding glass doors. In any case, the screen door incorporates screen mesh to block flying insects from entering and pets and small children from  exiting interior spaces, while allowing for air, light, and views. The screen door was invented in 1887 by Hannah Harger. 1887 Gramophone record A gramophone record, commonly known as a record, vinyl record, or phonograph record, is an analog sound storage medium consisting of a flat disc with an inscribed, modulated spiral groove. The groove usually starts near the periphery and ends near the center of the disc. Ever since Thomas Edison invented the phonograph in 1877, it produced distorted sound because of gravity's pressure on the playing stylus. In response, Emile Berliner invented a new medium for recording  and listening to sound in 1887 in the form of a horizontal disc, originally known as the "platter". 1887 Slot machine A slot machine is a casino gambling machine. Due to the vast number of possible wins with the original poker card based game, it proved practically impossible to come up with a way to make a machine capable of making an automatic pay-out for all possible winning combinations. The first "one-armed bandit" was invented in 1887 by Charles Fey of San Francisco, California who devised a simple automatic mechanism with three spinning reels containing a total of  five symbols – horseshoes, diamonds, spades, hearts and a Liberty Bell, which also gave the machine its name. 1887 Softball As a bat-and-ball team sport, softball is a variant of baseball. The difference between the two sports is that softball uses larger balls and requires a smaller playing field. Beginning as an indoor game in Chicago, softball was invented in 1887 by George Hancock. 1887 Comptometer 1888 Induction motor An induction motor is an AC electric motor in which the electric current in the rotor needed to produce torque is induced by electromagnetic induction from the magnetic field of  the stator winding instead of using mechanical commutation (brushes) that caused sparking in earlier electric motors. They are also self-starting. The Serbian-American inventor Nikola Tesla explored the idea of using a rotating magnetic induction field principle, using it in his invention of a poly-phase induction motor using alternating current which he received a patent for on May 1, 1888. The rights to Tesla's invention were licensed by George Westinghouse for the AC power system his company was developing. The induction motor Tesla patented in the U.S. is considered to have been an independent invention since the  Europe Italian physicist Galileo Ferraris published a paper on a rotating magnetic field based induction motor on 11 March 1888, almost two months before Tesla was granted his patent. A working model of the Ferraris inductionmotor may have been demonstrated at the University of Turin as early as 1885. 1888 Kinetoscope The Kinetoscope was an early motion picture exhibition device. It was designed for films to be viewed individually through the window of a cabinet housing its components. The Kinetoscope introduced the basic approach that would become the standard for all cinematic projection before the advent of video, creating the  illusion of movement by conveying a strip of perforated film bearing sequential images over a light source with a high-speed shutter. First described in conceptual terms by Thomas Alva Edison in 1888, his invention was largely developed by one of his assistants, William Kennedy Laurie Dickson, between 1889 and 1892. 1888 Trolley pole A trolley pole is a tapered cylindrical pole of wood or metal placed in contact with an overhead wire to provide electricity to the trolley car. The trolley pole sits atop a sprung base on the roof of the trolley vehicle, the springs maintaining the tension  to keep the trolley wheel or shoe in contact with the wire. Occasionally, a Canadian named John Joseph Wright is credited with inventing the trolley pole when an experimental tramway in Toronto, Ontario, was built in 1883. While Wright may have assisted in the installation of railways at the Canadian National Exhibition (CNE), and may even have used a pole system, there is no hard evidence to prove it. Likewise, Wright never filed or was issued a patent. Official credit for the invention of the electric trolley pole has gone to an American, Frank J. Sprague, who devised his working  system in Richmond, Virginia, in 1888. Known as the Richmond Union Passenger Railway, this 12-mile system was the first large-scale trolley line in the world, opening to great fanfare on February 12, 1888. 1888 Drinking straw The drinking straw is a tube used for transferring a liquid to the mouth, usually a drink from one location to another. The first crude forms of drinking straws were made of dry, hollow, rye grass. Marvin Stone is the inventor of the drinking straw. Stone, who worked in a factory that made paper cigarette holders, did not like this design because  it made beverages taste like grass. As an alternative, on January 3, 1888, Stone got a piece of paper from his factory and wrapped it around a pencil. By coating it with wax, his drinking straw became leak-proof so that it would not get waterlogged. 1888 Stepping switch In electrical controls, a stepping switch, also known as a stepping relay, is an electromechanical device which allows an input connection to be connected to one of a number of possible output connections, under the control of a series of electrical pulses. The major use for these devices was in early  automatic telephone exchanges to route telephone calls. It can step on one axis (called a uniselector), or on two axes (a Strowger switch). As the first automated telephone switch using electromagnets and hat pins, stepping switches were invented by Almon Brown Strowger in 1888. Strowger filed his patent application on March 12, 1889, and it was issued on March 10, 1891. 1888 Revolving door A revolving door has three or four doors that hang on a center shaft and rotate around a vertical axis within a round enclosure. In high-rise buildings, regular doors are hard to open because of  air pressure differentials. In order to address this problem, the revolving door was invented in 1888 by Theophilus Van Kannel of Philadelphia, Pennsylvania. Van Kannel patented the revolving door on August 7, 1888. 1888 Ballpoint pen A ballpoint pen is a writing instrument with an internal ink reservoir and a sphere for a point. The internal chamber is filled with a viscous ink that is dispensed at its tip during use by the rolling action of a small sphere. The first ballpoint pen is the creation of American leather tanner John Loud of Weymouth, Massachusetts in 1888 which contained a  reservoir for ink and a roller ball to mark up his leather hides. Despite Loud being the inventor of the ballpoint pen, it wasn't a practical success since the ink often leaked or clogged up. Loud took out a patent (British patent #15630) in the United Kingdom on October 30, 1888. However, it wasn't until 1935 when Hungarian newspaper editor László Bíró offered an improved version of the ballpoint pen that left paper smudge-free. 1888 Telautograph The telautograph, an analog precursor to the modern fax machine, transmits electrical impulses recorded by potentiometers at the sending station to  stepping motors attached to a pen at the receiving station, thus reproducing at the receiving station a drawing or signature made by sender. It was the first such device to transmit drawings to a stationary sheet of paper. The telautograph's invention is attributed to Elisha Gray, who patented it in 1888. 1888 Touch typing 1888 Salisbury steak 1889 Flexible flyer A flexible flyer or steel runner sled is a steerable wooden sled with thin metal runners whereby a rider may sit upright on the sled or lie on their stomach, allowing the possibility to descend a snowy slope feet -first or head-first. To steer the sled, the rider may either push on the wooden cross piece with their hands or feet, or pull on the rope attached to the wooden cross-piece. The flexible flyer was invented in 1889 by Philadelphia resident Samuel Leeds Allen. U.S. patent #408,681 was issued to Allen on August 13, 1889. 1889 Payphone A payphone or pay phone is a public telephone, usually located in a stand-alone upright container such as a phone booth, with payment done by inserting money (usually coins), a credit or debit card, or a telephone card before  the call is made. Pay telephone stations preceded the invention of the pay phone and existed as early as 1878. These stations were supervised by telephone company attendants or agents who collected the money due after people made their calls. In 1889, the first coin-operated telephone was installed by inventor William Gray at a bank in Hartford, Connecticut. However, it was a "postpay" machine that only accepted coins deposited after the call was placed. See also. Timelines of United States inventions Related topics