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Expired Canadian patentCanada

Door latch assembly

CA 2070008 C · Owner: Kropf, Keith E. · Inventors: Kropf, Keith E.

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

An appliance door latch assembly includes a strike member pivotally mounted to the door frame of an appliance. A spring yieldably urges the strike member to a latch position, and the strike member is movable against the bias of the spring from the latch position. A fixed bolt is mounted to the appliance door and adapted to engage the strike member and urge the strike member upwardly to its unlatch position and then downwardly to its latch position where it engages a latching shoulder on the fixed bolt. In moving from its unlatch position to its latch position, the strike member also engages a moveable handle on the door and forces the moveable handle into engagement with plungers of …

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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

  • Filed May 29, 1992 and granted December 9, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2012.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2014.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 1992
GrantedDecember 9, 1997
Term endedMay 29, 2012
Patent numberCA 2070008 C
Classification (IPC)E05C19/06 +2 more

Timeline

Timeline From CIPO dates

1993199519971999200120032005200720092011Application filedMay 29, 1992Patent grantedDec 9, 1997Term endedMay 29, 2012

Sources & verification

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