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Expired Canadian patentCanada

Integral cup and hookswitch actuator for a telephone set

CA 1198237 A · Owner: Nortel Networks Limited · Inventors: Haskins, Steve W.

CIPO record

Overview

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

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Abstract From the Canadian patent

Abstract of the Disclosure, A telephone set adaptable for either wall or desk top, mounting has an integral hookswitch and cup. The cup is at the rear of the telephone set, in the desk mounting mode and at the top in the wall, mounting mode. The cup receives the receiver end of the handset. The cup as a whole is pivoted and has a lever which acts on contact actuators of a switch. The cup is biased up, to an off hook position being depressed by, the handset to the on hook position. -i-

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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 December 17, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 17, 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.
FiledOctober 6, 1983
GrantedDecember 17, 1985
Term endedDecember 17, 2002
Patent numberCA 1198237 A
Classification (IPC)H04M1/02 +1 more

Timeline

Timeline From CIPO dates

1984198619881990199219941996199820002002Application filedOct 6, 1983Patent grantedDec 17, 1985Term endedDec 17, 2002

Sources & verification

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