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Expired Canadian patentCanada

Panic exit device having noise suppression

CA 1308429 C · Owner: Haeck, Paul J. · Inventors: Haeck, Paul J.; Cohrs, Richard B.; Jacobs, Gary R.

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Docket No. 0071-SL-VD, A PANIC EXIT DEVICE HAVING NOISE SUPPRESSION Abstract of the Disclosure, The Device is of the push pad type having a translating action rod which is biased in the latch-extended position. An abutment is fixed to the action rod to receive thereagainst the extending plunger of a shock absorber which is removably coupled to an open guide base. The base is mounted on a base plate to support action rod operating bellcranks, and to support the action rod therein also. A shock absorber holder is clasped to the guide base, and the cylinder of the shock absorber in, which a viscous fluid is confined, is engaged by the holder to direct the plunger toward the abutment. In the …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Granted October 6, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 6, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 12, 1988
GrantedOctober 6, 1992
Term endedOctober 6, 2009
Patent numberCA 1308429 C
Classification (IPC)E05B15/00

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedJan 12, 1988Patent grantedOct 6, 1992Term endedOct 6, 2009

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.