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Expired Canadian patentCanada

Telephone wall jack cover

CA 1058297 A · Owner: Illinois Tool Works Inc. · Inventors: Anderson, Bruce W.

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

Abstract of the Disclosure An electrical jack for telephones or the like is disclosed. The jack includes a box-like cover in which a number of bi-ended wires are mounted. Each wire terminates at one end in a spring contact adapted and located for engagement with a screw connector carried on a terminal block. At its other end, each wire terminates in a resilient folded spring contact. A clip member receives and mounts these folded spring contacts in a fixed, electrically spaced apart relationship. The clip is carried in the cover in such a location as to form part of a socket adapted to receive a multiwire electrical plug. -1-

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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 July 10, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 10, 1996.
  • 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—
GrantedJuly 10, 1979
Term endedJuly 10, 1996
Patent numberCA 1058297 A
Classification (IPC)H04M1/00 +2 more

Timeline

Timeline From CIPO dates

198019821984198619881990199219941996Patent grantedJuly 10, 1979Term endedJuly 10, 1996

Sources & verification

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