National Hand Tool Corporation

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5012705 Ratchet wrench with manually removable coreExpiredMar 16, 90May 07, 91[B25B]
4986147 Ratchet wrench having an internally reinforced handleExpiredJan 22, 90Jan 22, 91[B25B]
4762033 Ratchet wrench with manual disassembly capabilityExpiredFeb 24, 87Aug 09, 88[B25B]
D289966 Ratchet drive control bar, or similar articleExpiredMar 19, 84May 26, 87[]
4512218 Control bar for ratchet wrenchExpiredMar 19, 84Apr 23, 85[B25B]
D262433 Socket wrenchExpiredDec 05, 79Dec 29, 81[D080]
4302990 Socket wrenchExpiredNov 05, 79Dec 01, 81[B25B]
4280379 Reversihble ratchet driveExpiredJan 11, 80Jul 28, 81[B25B]
4187747 Quick release mechanism for socket wrenchExpiredFeb 21, 78Feb 12, 80[B25B]

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