Assignee
HAGER & SONS HINGE MFG
13 granted patents·353 citations·filing 1974–2003
Top patents by PatentIndex Score
13 records- 0182US4050189ADevice for operating a pocket doorHAGER & SONS HINGE MFG·Filed 1975·Granted Sep 27, 1977·39 cites·14 claims
- 0280US4583262ASpring hingeHAGER & SONS HINGE MFG·Filed 1984·Granted Apr 22, 1986·68 cites·5 claims
- 0379US4872287ALatching mechanism for trolley-hung doorsHAGER & SONS HINGE MFG·Filed 1988·Granted Oct 10, 1989·46 cites·26 claims
- 0476US3945670ADoor exit fixture with pneumatic means for maintaining a latch bolt in its retracted positionHAGER & SONS HINGE MFG·Filed 1974·Granted Mar 23, 1976·25 cites·16 claims
- 0573US4010572ADoor closer having means to neutralize the door closing force exerted therebyHAGER & SONS HINGE MFG·Filed 1975·Granted Mar 8, 1977·27 cites·16 claims
- 0672US4881346ADoor and method of fabricating the sameHAGER & SONS HINGE MFG·Filed 1988·Granted Nov 21, 1989·38 cites·20 claims
- 0768US4068507ALimited access lockHAGER & SONS HINGE MFG·Filed 1976·Granted Jan 17, 1978·18 cites·13 claims
- 0864US3988859AEntry structure and air-operated lock thereforHAGER & SONS HINGE MFG·Filed 1974·Granted Nov 2, 1976·20 cites·9 claims
- 0961US3964207APivot arrangement for transferring pressurized air into a pivot doorHAGER & SONS HINGE MFG·Filed 1975·Granted Jun 22, 1976·19 cites·4 claims
- 1060US7063042B2Continuous gear hinge with electrical conductorHAGER & SONS HINGE MFG·Filed 2003·Granted Jun 20, 2006·22 cites·19 claims
- 1155US4039433AProcess and apparatus for recovering metal from soilHAGER & SONS HINGE MFG·Filed 1976·Granted Aug 2, 1977·11 cites·15 claims
- 1253US3948067ALocking system for two or more doors leading to an enclosed areaHAGER & SONS HINGE MFG·Filed 1975·Granted Apr 6, 1976·10 cites·10 claims
- 1343US3973357ADoor closer with switch actuated therebyHAGER & SONS HINGE MFG·Filed 1974·Granted Aug 10, 1976·10 cites·10 claims
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