U.S. patents available from 1976 to present.
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Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.

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Class 69/7.5 - Searing


Subclass of Class 69 - Leather manufactures
Definition: Machines for searing leather.
No. of patents: 1
Last issue date: 12/31/1991


NumberTitleIssue Date
5075990Battery separator fabric method for manufacturing
A battery separator fabric comprising a nonwoven fibrous web of thermoplastic fibers having top and bottom surface fibers and inner fibers. The surfaces of the top and bottom surface fibers of the fibrous web are seared and fused together to form film-lik...
12/31/1991
 
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