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Expired Canadian patentCanada

Twin wheel caster with integral brake assembly

CA 1309216 C · Owner: Perl, Ludovic A. · Inventors: Perl, Ludovic 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 twin wheel caster with a brake assembly formed as an integral part of the caster housing. The housing has a central body defining a notch therein and a resilient braking arm integrally formed with and extending downwardly from the central body movable between an unlocked position whereby, the caster wheels are permitted to rotate and a locked, position, whereby the wheels are prevented from rotating.

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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 October 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 26, 1989
GrantedOctober 27, 1992
Term endedOctober 27, 2009
Patent numberCA 1309216 C
Classification (IPC)B60T1/06 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedSep 26, 1989Patent grantedOct 27, 1992Term endedOct 27, 2009

Sources & verification

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