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Expired Canadian patentCanada

Bracket for mounting a crankcase heater

CA 2053107 C · Owner: Siewert, Herbert G. · Inventors: Siewert, Herbert G.; Cowen, Russell A.

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 compressor crankcase heater bracket and method of assembly is shown in which a bracket fastened to the compressor accommodates a metal spring clip holding the heater. The method of assembly results in a quick and easy assembly process without compromising the integrity of the transfer of heat to the housing. Thermal transfer is further aided by conduction through the clip and bracket.

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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

  • Filed October 9, 1991 and granted August 16, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 9, 1991
GrantedAugust 16, 1994
Term endedOctober 9, 2011
Patent numberCA 2053107 C
Classification (IPC)F16B2/24 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedOct 9, 1991Patent grantedAug 16, 1994Term endedOct 9, 2011

Sources & verification

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