Question: In what year did the producer of Ham and Eggs cease producing Oswald cartoons for Universal?

full_context: Document 1: Turner Classic Movies: Most Paramount sound releases made prior to 1950 are owned by EMKA, Ltd./NBCUniversal Television Distribution, while Paramount (currently owned by Viacom) holds on to most of its post-1949 releases, which are distributed for television by Trifecta Entertainment & Media. Columbia's film output is owned by Sony (through Sony Pictures Television); distribution of 20th Century Fox's film library is handled for television by its 21st Century Fox subsidiary 20th Television, and the Walt Disney Studios (owned by The Walt Disney Company) has its library film output handled for television by Disney-ABC Domestic Television. Classic films released by 20th Century Fox, Paramount Pictures, Universal Studios, and Columbia Pictures are licensed individually for broadcast on Turner Classic Movies.
Document 2: The Adventures of Rocky and Bullwinkle and Friends: The Rocky and Bullwinkle Show remained in syndicated reruns and was still available for local television stations through The Program Exchange as late as 2016; WBBZ - TV, for instance, aired the show in a strip to counterprogram 10 PM newscasts in the Buffalo, New York market during the summer 2013 season. The underlying rights are now owned by Universal Pictures, which holds the library of predecessor companies DreamWorks Animation and Classic Media, and who in turn with copyright holder Ward Productions forms the joint venture Bullwinkle Studios, which manages the Rocky and Bullwinkle properties; Universal's purchase of Classic Media coincided with The Program Exchange's shutdown.
Document 3: Universal Pictures: In 2006, after almost 80 years, NBC Universal sold all Walt Disney-produced Oswald cartoons, along with the rights to the character himself, back to Disney. In return, Disney released ABC sportscaster Al Michaels from his contract so he could work on NBC's Sunday night NFL football package. However, Universal retained ownership of Oswald cartoons produced for them by Walter Lantz from 1929 to 1943.
Document 4: Universal Pictures: The production arm of the studio still struggled. While there were to be a few hits like The Killers (1946) and The Naked City (1948), Universal-International's new theatrical films often met with disappointing response at the box office. By the late 1940s, Goetz was out, and the studio returned to low-budget films. The inexpensive Francis (1950), the first film of a series about a talking mule and Ma and Pa Kettle (1949), part of a series, became mainstays of the company. Once again, the films of Abbott and Costello, including Abbott and Costello Meet Frankenstein (1948), were among the studio's top-grossing productions. But at this point Rank lost interest and sold his shares to the investor Milton Rackmil, whose Decca Records would take full control of Universal in 1952. Besides Abbott and Costello, the studio retained the Walter Lantz cartoon studio, whose product was released with Universal-International's films.
Document 5: Universal Pictures: Anxious to expand the company's broadcast and cable presence, longtime MCA head Lew Wasserman sought a rich partner. He located Japanese electronics manufacturer Matsushita Electric (now known as Panasonic), which agreed to acquire MCA for $6.6 billion in 1990. Meanwhile, around this time, the production subsidiary was renamed Universal Studios Inc., and (in 1990) MCA created MCA/Universal Home Video Inc. for the VHS video cassette (later DVD) sales industry.
Document 6: Tom and Jerry: In its original run, Hanna and Barbera produced 114 Tom and Jerry shorts for Metro-Goldwyn-Mayer from 1940 to 1958. During this time, they won seven Academy Awards for Animated Short Film, tying for first place with Walt Disney's Silly Symphonies with the most awards in the category. After the MGM cartoon studio closed in 1957, MGM revived the series with Gene Deitch directing an additional 13 Tom and Jerry shorts for Rembrandt Films from 1961 to 1962. Tom and Jerry then became the highest-grossing animated short film series of that time, overtaking Looney Tunes. Chuck Jones then produced another 34 shorts with Sib Tower 12 Productions between 1963 and 1967. Three more shorts were produced, The Mansion Cat in 2001, The Karate Guard in 2005, and A Fundraising Adventure in 2014, making a total of 164 shorts.
Document 7: Looney Tunes: Looney Tunes is an American series of animated comedy short films produced by Warner Bros. from 1930 to 1969 during the golden age of American animation alongside its sister series "Merrie Melodies". It was known for introducing Bugs Bunny, Daffy Duck, Porky Pig, Elmer Fudd, Tweety, Sylvester, Granny, Yosemite Sam, Foghorn Leghorn, Marvin the Martian, Pepé Le Pew, Speedy Gonzales, Tasmanian Devil, Road Runner, Wile E. Coyote and many other cartoon characters.
Document 8: Turner Classic Movies: In 1986, eight years before the launch of Turner Classic Movies, Ted Turner acquired the Metro-Goldwyn-Mayer film studio for $1.5 billion. Concerns over Turner Entertainment's corporate debt load resulted in Turner selling the studio that October back to Kirk Kerkorian, from whom Turner had purchased the studio less than a year before. As part of the deal, Turner Entertainment retained ownership of MGM's library of films released up to May 9, 1986. Turner Broadcasting System was split into two companies; Turner Broadcasting System and Metro-Goldwyn-Mayer and reincorporated as MGM/UA Communications Co.
Document 9: IPod: Universal Music Group decided not to renew their contract with the iTunes Store on July 3, 2007. Universal will now supply iTunes in an 'at will' capacity.
Document 10: The Woody Woodpecker Show: The Woody Woodpecker Show is a long-running 30-minute American television series mainly composed of the film series in animated cartoon escapades of Woody Woodpecker and other Walter Lantz characters including Andy Panda, Chilly Willy, and Inspector Willoughby released by Walter Lantz Productions. The series was revived and reformatted several times, but remained popular for nearly four decades and allowed the studio to continue making theatrical cartoons until 1972 when it shut down. It also kept the Walter Lantz/Universal "cartunes" made during the Golden Age of American animation a part of the American consciousness. The "Woody Woodpecker Show" was named the 88th best animated series by IGN.
Document 11: A Corny Concerto: A Corny Concerto is a 1943 American animated short film of the "Merrie Melodies" series starring Bugs Bunny, Porky Pig and Elmer Fudd. They perform a parody of Disney's Silly Symphony cartoon series and specifically his 1940 feature "Fantasia". The film uses two of Johann Strauss' best known waltzes, "Tales from the Vienna Woods" and "The Blue Danube", adapted by the cartoon unit's music director, Carl Stalling and orchestrated by its arranger, Milt Franklyn. It was produced by Leon Schlesinger Productions and distributed by Warner Bros. It was directed by Bob Clampett, written by Frank Tashlin, animated by Robert McKimson and released on September 18, 1943. In 1994 it was voted # 47 of the 50 Greatest Cartoons of all time by members of the animation field.
Document 12: Ham and Eggs at the Front: Ham and Eggs at the Front is a 1927 American silent comedy film directed by Roy Del Ruth and starring Tom Wilson, Heinie Conklin and Myrna Loy in blackface. The film was released with a Vitaphone synchronized soundtrack with a music score and sound effects.
Document 13: Sports Cartoons: Sports Cartoons is an animated series, produced by Derek Lamb and Janet Perlman's Lamb-Perlman Productions in 1985. The series featured various sports being played by anthropomorphic animals, including cats, dogs, pigs, and hippopotami. Some of these sports included ice hockey, shot put, soccer, American football, and table tennis.
Document 14: Ham and Eggs: Ham and Eggs is an animated cartoon produced by Walter Lantz, and as part of the Oswald the Lucky Rabbit series. It is the 72nd Oswald short by Lantz and the 124th in the entire series.
Document 15: The Egg and Jerry: The Egg and Jerry is a 1956 one reel animated short, directed and produced by William Hanna and Joseph Barbera with music by Scott Bradley. It is a CinemaScope remake of 1949's "Hatch Up Your Troubles", and the first of the CinemaScope remakes of a few cartoons. The only aspects of the cartoon that differ from the original are that it is in a Widescreen format, the ink lines around the characters are thicker, and the backgrounds are more stylised. Also, the egg is white instead of pink, and Tom is missing the white fur stripe between his eyes, typical of the time period. The cartoon's title is a play-on-words of the novel and film "The Egg and I". It is the first cartoon that has in the bottom right corner, "In CinemaScope" (with some cartoons it is elsewhere).
ground_truth: 1943
sub_queries: Ham and Eggs >> producer Answer: Walter Lantz
In what year did Walter Lantz cease producing Oswald cartoons for Universal? Answer: 1943