Nupro Company

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D355149 Combined truck cab body exterior and front bumperExpiredNov 19, 93Feb 07, 95[]
D345490 Pie cutting toolExpiredOct 22, 93Mar 29, 94[]
D342195 Pie cutting toolExpiredJun 26, 92Dec 14, 93[]
5033505 Pressure regulator and method of assembling sameExpiredSep 27, 89Jul 23, 91[G05D]
4917357 Diaphragm valveExpiredAug 08, 89Apr 17, 90[F16K]
4915353 Diaphragm valveExpiredSep 26, 88Apr 10, 90[F16K]
4840191 Inflatable valveExpiredApr 05, 88Jun 20, 89[F16K]
4750709 Diaphragm valveExpiredApr 20, 87Jun 14, 88[F16K]
4732363 Diaphragm valveExpiredJan 08, 87Mar 22, 88[F16K]
4687017 Inverted bellows valveExpiredApr 28, 86Aug 18, 87[F16K]
4687180 Metering valveExpiredMar 10, 86Aug 18, 87[F16K]
4687181 Metering valveExpiredFeb 14, 86Aug 18, 87[F16K]
4684106 ValveExpiredMar 03, 86Aug 04, 87[F16K]
4659061 Seal ring shutoff stem tipExpiredOct 15, 85Apr 21, 87[F16K]
4606374 ValveExpiredApr 05, 83Aug 19, 86[F16K]
4530373 Pressure relief valveExpiredFeb 22, 83Jul 23, 85[F16K]
4262880 Plug valveExpiredJun 29, 79Apr 21, 81[F16K]

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