Patent Yard Sign in
Expired Canadian patentCanada

Electromagnetically operated circuit breaker having compartmentalised housing

CA 1099772 A · Owner: Weber Ag, Fabrik Elektrotechnischer Artikel Und Apparate · Inventors: Rusch, Arthur

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

A circuit breaker including a manually operated lever a, movable contact lever for opening and closing the electrical circuit through the circuit breaker, a switch latch which connects the manually operated lever to the movable contact lever and which activates the movable contact lever a thermal trigger, connected to the switch latch and a magnetic trigger connected, to the switch latch. The magnetic trigger the contact lever, the switch latch and the thermal trigger all occupy separate compartments.

Read the whole patent

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 April 21, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 21, 1998.
  • 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 2, 1978
GrantedApril 21, 1981
Term endedApril 21, 1998
Patent numberCA 1099772 A
Classification (IPC)H01H73/36 +2 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedAug 2, 1978Patent grantedApril 21, 1981Term endedApril 21, 1998

Sources & verification

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