Chas. F. Thackray Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5236609 Sterilizable lubricantExpiredJan 24, 91Aug 17, 93[C10M]
5169402 Surgical instrumentExpiredApr 29, 91Dec 08, 92[A61B]
4950297 Knee prosthesisExpiredJun 14, 88Aug 21, 90[A61F]
4791919 Surgical instrumentsExpiredJan 24, 86Dec 20, 88[A61F]
4783192 Joint prosthesisExpiredAug 13, 86Nov 08, 88[A61F]
4568348 Knee prosthesisExpiredMar 14, 83Feb 04, 86[A61F]

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