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Expired Canadian patentCanada

Lineman's safety strap

CA 1231359 A · Owner: Deplancke, Roger H. · Inventors: Allen, Kimberly J.; Deplancke, Roger H.

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

A lineman's safety strap comprises an outer strap connected to the lineman's body belt and extending around the far face of a pole to be climbed, and an inner strap extending loosely between end portions of the outer strap across the near face of the pole. The outer strap has inwardy and downwardly directed teeth which in the, event of a fall, bite into the pole the inner, strap bearing against the opposite face of the pole and cooperating with the toothed outer strap to support the lineman. Prior art safety straps which have an inner belt, tightly encircle the pole thus inhibiting climbing ability and causing inferior anchorage characteristics.

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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 January 12, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 12, 2005.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 1983
GrantedJanuary 12, 1988
Term endedJanuary 12, 2005
Patent numberCA 1231359 A
Classification (IPC)A63B27/00 +1 more

Timeline

Timeline From CIPO dates

19841987199019931996199920022005Application filedApril 29, 1983Patent grantedJan 12, 1988Term endedJan 12, 2005

Sources & verification

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