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Expired Canadian patentCanada

Electrically insulated temporary aerial platform

CA 1264060 C · Owner: A. B. Chance Company · Inventors: Mckelvy, Marvin D.

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 electrically insulated aerial platform assembly for use by a lineman on or around utility poles is provided which is constructed to maintain the actual work platform in an electrically insulated condition relative to the utility pole itself and the pole connection hardware associated with the assembly. In preferred forms the platform assembly includes a work platform presenting an elongated, substantially flat upper work surface where a lineman may by stand sit or, kneel, together with means for temporarily attaching the platform to the utility pole with the platform being electrically insulated from the pole during normal working conditions. Attachment of the …

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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 27, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 27, 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.
FiledMarch 26, 1987
GrantedDecember 27, 1989
Term endedDecember 27, 2006
Patent numberCA 1264060 C
Classification (IPC)A45F3/26 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedMarch 26, 1987Patent grantedDec 27, 1989Term endedDec 27, 2006

Sources & verification

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