Contraves AG

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4975765 Highly integrated circuit and method for the production thereofExpiredJul 07, 89Dec 04, 90[H01L]
4967313 Electronic circuit and method of production thereofExpiredJul 07, 89Oct 30, 90[H05K]
4939325 Push-button multi-position switchExpiredMay 01, 89Jul 03, 90[H01H]
4894499 Electric push-button switchExpiredSep 26, 88Jan 16, 90[H01H]
4865084 Tape wheel for weft thread insertion at a weaving machineExpiredMar 06, 89Sep 12, 89[D03D]
4793525 Apparatus for the dosing of a pulverulent solid materialExpiredMar 14, 88Dec 27, 88[G01F]
4787535 Apparatus for the dosed delivery of a granular solid materialExpiredApr 28, 86Nov 29, 88[B67D]
4748891 Hydraulic systemExpiredSep 22, 86Jun 07, 88[F41D]
4741607 Supporting device for an optical observation instrumentExpiredMar 11, 87May 03, 88[B02B, A47G]
4726220 Method of and apparatus for measuring rheological characteristics of substancesExpiredDec 01, 86Feb 23, 88[G01N]
4687051 Temperature regulating device for a laboratory reaction vessel arrangementExpiredAug 26, 85Aug 18, 87[F25B]
4684088 Support apparatus for an optical observation deviceExpiredApr 25, 86Aug 04, 87[A47G]
4684276 Individual sheet feeder device for printerExpiredSep 26, 85Aug 04, 87[B41J]
4671344 Method for closely regulating the temperature of a laboratory reaction vessel arrangementExpiredJul 08, 86Jun 09, 87[F25B, F28F]
4667730 Temperature regulating apparatus for a laboratory reaction vessel arrangementExpiredJul 08, 86May 26, 87[F25B, F28F]
4580093 Method and apparatus for correcting coincidence errors during counting of two types of particlesExpiredJul 25, 83Apr 01, 86[G06M, G01N]
4567908 Discharge system and method of operating sameExpiredMay 14, 84Feb 04, 86[B67D]
4558857 Operating tableExpiredJan 31, 83Dec 17, 85[A61G]
4547949 Method for mounting a radar reflector on an artillery shellExpiredFeb 23, 84Oct 22, 85[B23P]
4534472 Guide rail for electronic module supportsExpiredSep 19, 83Aug 13, 85[H02B]

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