Senate Historian's Office Records of the Committee on Patents and the Patent Office, 1837-69 and the Committee on Patents, 1869-1946, Records of the Committee on the Judiciary and Related Committees, 1816–1968, Guide to the Records of the U.S. House of Representatives at the National Archives, 1789-1989 (Record Group 46), National Archives and Records Administration Notes External links Patents 1837 establishments in the United States 1947 disestablishments in the United States United States patent law