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(d) - data for 1836 include 599 patents issued prior to July 4, the effective date of the 1836 patent law (e) - "Patents", as used in this column, refers to "patents for inventions", also known as "utility" patents Data Sources (a) - recent statistics are obtained from the report, U.S. Patent Statistics Report, U.S. Patent and Trademark Office ...
As Samuel Colt's patent on the revolver was set to expire in 1856, Horace Smith and Daniel B. Wesson were researching a prototype for a metallic cartridge revolver. When they discovered that a former Colt employee named Rollin White held the patent for a "Bored-through" cylinder, a component needed for this new invention, the two partners approached White to manufacture a newly designed ...
AJ Aubrey Patents Description City Filed from Patent Number Date Issued Improved Safety for breakdown guns Hopkinton, MA: 859477: July 9, 1907 Sight For Firearms Meriden, CT: 839535: December 25, 1906 Sight For Firearms Meriden, CT: 835091: November 6, 1906 Automatic Shell-Ejector for Firearms Meriden, CT: 887569: May 12, 1908 Fore-Stock ...
Wikipedia entry for Google Patents.Google Patents is a search engine from Google that indexes patents and patent applications from the United States Patent and Trademark Office.
The Derwent World Patents Index (DWPI) is a database containing patent applications and grants from 44 of the world's patent issuing authorities. [1] [2]Compiled in English by editorial staff, the database provides a short abstract detailing the nature and use of the invention described in a patent and is indexed into alphanumeric technology categories to allow retrieval of relevant patent ...
M1 Garand: Harrington & Richardson was assigned serial number ranges 4660001 through 4800000, 5488247 through 5793847, and 400 rifles numbered from 6034330 through 6034729. The major components, such as the barrel, bolt, hammer, operating rod, safety, and trigger housing were stamped with a numeric drawing number and the manufacturer's initials.
First patent Under patent 11,526 of 13 July 1913 Norris sought protection for his "Adjustment for Plane Irons". The 1914 Norris price list gives an outline explanation, whereas the HMSO report published in 1921 gives a full description of the mechanism.
In 1957, Luther Kilness filed patent numbers 2,554,990 [4] and 2,981,389 [5] with the United States Patent Office. This design can be said to be the next evolution of the ratchet design of SK Hand Tools' Theodore Rueb. [2] This ratchet was a very successful design, lasting from its introduction in 1961 to the eventual closure of New Britain in ...