WALTER KIDDE AEROSPACE, INC., 2500 AIRPORT DRIVE, WILSON, NC 27893, A DE CORP.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5177708 Dynamic random access memory and method for equalizing sense amplifier drive signal linesExpiredOct 19, 88Jan 05, 93[G11C]
5172099 Self monitoring fire detection systemExpiredDec 17, 91Dec 15, 92[G08B]
5159200 Detector for sensing hot spots and fires in a regionExpiredApr 12, 91Oct 27, 92[G01J]
5150577 System and method for recovering and purifying a halocarbon compositionExpiredJun 11, 91Sep 29, 92[F25J]
5106109 Convertible cart apparatusExpiredApr 16, 91Apr 21, 92[B62B]
4974812 Quick opening solenoid actuated valveExpiredMay 31, 89Dec 04, 90[F16K]
4564762 Smoke detectorExpiredMay 16, 84Jan 14, 86[G01T]
4455553 Smoke detector of the ionization typeExpiredMay 17, 82Jun 19, 84[G08B]
4436159 Manual/electric activated squib actuated discharge valve for fire extinguishersExpiredMay 01, 81Mar 13, 84[A62C]
4363556 Continuous strip cold detectorExpiredJan 14, 80Dec 14, 82[G01K]
4206454 Two channel optical flame detectorExpiredMay 08, 78Jun 03, 80[G08B, G01J]
4206456 Smoke detectorExpiredJan 12, 78Jun 03, 80[G08B, G01J, G01N]

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