Patent Yard Sign in
Expired Canadian patentCanada

Telephone cord groove and cord retaining means

CA 1257725 A · Owner: Northern Telecom Limited · Inventors: Haskins, Steve W.

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

Abstract of the Disclosure, A cord receiving and retaining groove in the back surface or web of a telephone set base has one or more cord retaining formations spaced along the groove. Two spaced parallel walls extend inward from the groove, away from the back surface. A cantilever member is formed in each wall, the cantilever member integral with the wall at its fixed end and extending to a free end in the groove. The cantilever members are in opposition. A projection is formed on the free end of each cantilever member, the projections extending towards each other. A cord is pushed into the groove and snaps past the projections on the free ends of the cantilever members. The cantilever …

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 July 18, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 18, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 22, 1987
GrantedJuly 18, 1989
Term endedJuly 18, 2006
Patent numberCA 1257725 A
Classification (IPC)H04M1/15

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJan 22, 1987Patent grantedJuly 18, 1989Term endedJuly 18, 2006

Sources & verification

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