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Expired Canadian patentCanada

Mobile contact freeing device for short-circuit current limiting contactors

CA 1182153 A · Owner: Telemecanique Electrique (La) · Inventors: Haury, Andre; Blanchard, Christian; Siffroi, Lucien

CIPO record

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

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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 February 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 6, 1982
GrantedFebruary 5, 1985
Term endedFebruary 5, 2002
Patent numberCA 1182153 A
Classification (IPC)H01H77/10

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedAug 6, 1982Patent grantedFeb 5, 1985Term endedFeb 5, 2002

Sources & verification

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