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Expired Canadian patentCanada

Molded case circuit breaker operating mechanism

CA 1309445 C · Owner: General Electric Company · Inventors: Meiners, David Joseph; Castonguay, Roger Neil

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

A circuit breaker operating mechanism for automated assembly finds application within circuit breakers of different ampere ratings. The circuit breaker contacts are opened and closed by means of a roller connected to the circuit breaker operating handle through a cradle link and a cam arranged on the movable contact carrier. The operating springs cradle and latch are first assem-, bled to the operating mechanism prior to assembly of the operating mechanism within the breaker housing.

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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 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 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.
FiledMarch 24, 1988
GrantedOctober 27, 1992
Term endedOctober 27, 2009
Patent numberCA 1309445 C
Classification (IPC)H01H73/40 +2 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedMarch 24, 1988Patent grantedOct 27, 1992Term endedOct 27, 2009

Sources & verification

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