[DOC] [TLE] Abraham Lincoln's patent - Wikipedia [PAR] Abraham Lincoln's patent is a patented invention to lift boats over shoals and 
obstructions in a river. It is the only United States patent ever registered to a 
President of the United ... Lincoln was at times a patent attorney and was familiar 
with the patent application ... He eventually came up with an idea for inflatable 
flotation. [DOC] [TLE] Abraham Lincoln Is the Only President Ever to Have a Patent | History [PAR] 6,469, was granted on May 22, 1849, for a device for "Buoying Vessels Over ... 
Freeing a beached vessel usually involved the laborious unloading of cargo ... 
William H. Herndon, his law partner at the time he was working on his ... The 
precise source of the model of the flotation device is unclear, though there's no 
doubt that... [DOC] [TLE] Abraham Lincoln's Patent - Abraham Lincoln Online [PAR] On May 22, 1849, Abraham Lincoln received Patent No. 6469 for a device to lift 
boats over shoals, an invention which was never manufactured. However, it 
eventually made him the only U.S. president to hold a patent. ... William H. 
Herndon, his last law partner, attributed this to his father, saying, "he evinced a 
decided bent... [DOC] [TLE] Abraham Lincoln, Inventor, 1849 | The Gilder Lehrman Institute of ... [PAR] On March 10, 1849, Abraham Lincoln filed a patent for a device for buoying 
vessels ... Abraham Lincoln the honor of being the only US president to hold a 
patent. ... His invention, adjustable buoyant air chambers, would be attached to 
the ... combining adjustable buoyant air chambers with a steamboat or other 
vessel for... [DOC] [TLE] Presidential Patent | Teachinghistory.org [PAR] Early presidents signed the certificates that the Patent Office issued, and 
collectors ... But Abraham Lincoln was the only president to receive a patent 
himself. ... Patent #6469 for "A Device for Buoying Vessels Over Shoals" on May 
22, 1849. ... There was no problem with the boat on the 1828 trip, when he and 
another man,... [DOC] [TLE] Abraham Lincoln - Adding The Fuel of Interest to the Fire of Genius ... [PAR] Sep 23, 2014 ... In fact, Abe Lincoln is the only U.S. President to gain official recognition as ... U.S. 
Patent 6469 was awarded to Abraham Lincoln on May 22, 1849. ... his life-long 
fascination with mechanical devices and machinelike accessories, ... but this time 
their boat got lodged on a milldam and began taking on water. [DOC] [TLE] Full text of "Abraham Lincoln's vocations" - Internet Archive [PAR] 1, is a side elevation of a vessel with the buoyant chambers combined .... "I met 
with Mr. Lincoln first in 1847, at which time he was in con- gress," said .... ^69 
granted May 22, 1849 to Abra- ham Lincoln for method of lifting ves- sels over 
shoals. .... only President of the United States who ever got a patent upon an 
invention-... [DOC] [TLE] 10 Facts about Abraham Lincoln - Civil War Trust [PAR] Learn more about the life and times of Abraham Lincoln, the 16th President ... 
Fact 1: The young Abraham Lincoln described himself as a piece of floating 
driftwood. ... In 1834, he won his second General Assembly election and served 
four ... Fact 3: Abraham Lincoln is the only president in American history to hold a 
patent. [DOC] [TLE] Abraham Lincoln and Technology - Abraham Lincoln's Classroom [PAR] 'Yes,' said he, sadly, 'I now have an advantage over you in, for the first time in my 
... He was fond of astronomy but I can't call to mind any reference of his to 
geology. .... a patent was issued, but the invention was never applied to any 
vessel, so far as I ... Mr. Lincoln was the only American President ever to be 
issued a patent. [DOC] [TLE] Inventions and the U.S. Presidency - InventHelp - Newsletter [PAR] Rumsey used Washington's certificate to obtain patents and support for his 
inventions ... In 1790, President George Washington signed the Bill that laid the 
foundations ... During that time

Question: Only president granted a patent at any time in his life; he got it in 1849 for a ship flotation device
Answer: Abraham Lincoln