GRENDAHL, DENNIS T.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5509903 Syringe having a flexible collarExpiredNov 19, 92Apr 23, 96[A61M]
5213721 Process of making a member with holesExpiredDec 21, 90May 25, 93[B29D]
4872877 Intraocular lens with ultraviolet screening agentExpiredMar 17, 87Oct 10, 89[A61F]
4872878 Optical brigthener in an intraocular lensExpiredMay 26, 87Oct 10, 89[A61F]
4843209 Method and apparatus for laser stakingExpiredNov 05, 87Jun 27, 89[B23K]
4787903 Intraocular lensExpiredJul 24, 85Nov 29, 88[A61F]
4774036 Method of making an intraocular lensExpiredApr 22, 87Sep 27, 88[B29D]
4705464 Medicine pumpExpiredMay 09, 86Nov 10, 87[F04B]
4676791 Intraocular lens and method for making sameExpiredAug 01, 85Jun 30, 87[A61F]
4661108 Intraocular lensExpiredJul 03, 85Apr 28, 87[A61F]
4624661 Drug dispensing systemExpiredMay 06, 85Nov 25, 86[A61M]
4624669 Corneal inlay with holesExpiredSep 26, 84Nov 25, 86[A61F]
4543673 Vaulted intraocular lensExpiredJun 03, 83Oct 01, 85[A61F, B29D]
4503570 Intraocular lensExpiredJul 15, 82Mar 12, 85[A61F]

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