F. Boyd, Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5029354 KnifeExpiredAug 24, 90Jul 09, 91[B25F]
4961239 Fixed yet pivotable knife or toolExpiredAug 22, 88Oct 09, 90[B25F]
4901439 Lock block knife with single lock positionExpiredMay 01, 89Feb 20, 90[B26B]
4750267 Folding blade knifeExpiredOct 22, 86Jun 14, 88[B26B]
4541175 KnifeExpiredJul 25, 83Sep 17, 85[B26B]

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