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Expired Canadian patentCanada

Self-adjustable brake

CA 2283618 C · Owner: Dowen, Gordon C. · Inventors: Dowen, Gordon C.

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 transaxle including a self adjusting brake mechanism. The transaxle includes a housing and a speed reduction mechanism including a plurality of interconnected shafts rotatably disposed in the housing. A brake assembly is mounted, on the housing for applying braking force to one of the shafts the braking , mechanism, including a threaded mounting member and a brake lever having an opening rotatably, disposed around the threaded member. An adjustment nut is threadedly disposed on, the mounting member and has a portion thereof disposed within the brake lever opening, the adjustment nut operable when rotated in a given direction to adjust the, brake to compensate for wear. The brake lever …

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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 September 27, 1999 and granted March 18, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 27, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 27, 2021.
  • 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 27, 1999
GrantedMarch 18, 2003
Term endedSeptember 27, 2019
Patent numberCA 2283618 C
Classification (IPC)F16D65/56 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedSep 27, 1999Patent grantedMarch 18, 2003Term endedSep 27, 2019

Sources & verification

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