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Expired Canadian patentCanada

Column and lever construction for a charactered telephone

CA 1084186 A · Owner: American Telecommunications Corporation · Inventors: Tucker, Council A.

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

A column mounts on a base housing and mounts a lever for pivotal movement between an "off-hook" and an "on-hook" position. A portion of the lever is an arm of a fanciful character which holds a telephone handset. The column attaches the character to it and the base housing. The lever has a collar in receipt of the column and an actuation tab from the collar for sliding contact with a nose of a finger of an actuator. The actuator transmits off handset and on-handset signals to a hook switch in the base housing. A pivot bracket mounts the lever on the column diametrically opposite the finger and character arm and outwardly and away from the column. The lever moves through a comparatively …

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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 August 19, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1977
GrantedAugust 19, 1980
Term endedAugust 19, 1997
Patent numberCA 1084186 A
Classification (IPC)H04M1/08 +1 more

Timeline

Timeline From CIPO dates

1978198019821984198619881990199219941996Application filedNov 18, 1977Patent grantedAug 19, 1980Term endedAug 19, 1997

Sources & verification

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