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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 ...
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 ...
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.
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.
The basic design for the Winchester Model 1905 is covered by U.S. patent 681,481 issued ... The plain finish rifles were offered in 1905 at a list price of $28, the ...
The button is located on the improved shuttle frame, Singer part number 54507, which can be retrofitted onto older model 27 and 28 machines. The bobbin winder is mounted high on the pedestal, where a small rubber tire occupying its pulley makes contact with the motor belt.