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Expired Canadian patentCanada

Electric switch

CA 950010 A · Owner: Dynamit Nobel Aktiengesellschaft · Inventors: Bendler, Hellmut; Gawlick, Heinz; Gottwald, Gunther

CIPO record

Overview

Drawings and full text

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 June 25, 1974. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 25, 1991.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedJune 25, 1974
Term endedJune 25, 1991
Patent numberCA 950010 A
Classification (IPC)H01H35/14

Timeline

Timeline From CIPO dates

197519771979198119831985198719891991Patent grantedJune 25, 1974Term endedJune 25, 1991

Sources & verification

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