U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

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...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.

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Class 400/339 - Using fluid or fluent-material retarder


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein said movement of the carriage* is
No. of patents: 1
Last issue date: 03/16/1976


NumberTitleIssue Date
3944029Damper for printing and the like
A damper for line printers and the like in which the print head moves from left to right across a paper document during the printing phase and upon completion of a line of print, moves in the "carriage return" direction at a more rapid rate to return to t...
03/16/1976
 
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