TOTAL WALTHER FEUERSCHUTZ GMBH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5806603 Fire extinguishing deviceExpiredApr 22, 96Sep 15, 98[A62C]
5548521 Method and apparatus for operating an automatic data carrier libraryExpiredDec 16, 94Aug 20, 96[G06F]
5415239 Sprinkler for automatic fire extinguishing plantExpiredJul 09, 92May 16, 95[A62C]
5378288 Method for the disposal of foam, in particular of fire extinguishing foamExpiredMar 03, 92Jan 03, 95[B08B]
5127959 Process for disposal of a fire-extinguishing foam or of other foamsExpiredSep 19, 90Jul 07, 92[B08B]
4993496 Quick release valve for sprinkler headExpiredJan 08, 90Feb 19, 91[A62C]
4898246 Quick release valve for sprinkler headExpiredJun 13, 88Feb 06, 90[A62C]
4833451 Individual source identificationExpiredJun 14, 88May 23, 89[G08B]
4433752 Rescue system on high-rise buildingsExpiredOct 14, 81Feb 28, 84[A62B, B66B]
4350224 Rescue system on high rise buildings for evacuating persons in the case of fireExpiredJun 04, 80Sep 21, 82[A62B, B66B]

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