Patent Yard Sign in
Expired Canadian patentCanada

Disc brake

CA 2003809 C · Owner: Megginson, George William · Inventors: Redenbarger, Philip Dale; Megginson, George William

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A disc brake assembly comprises a caliper member that is rectilinearly movable relative to a support member via a pin member that slidably guides the caliper member while secured to the support member. A second pin member is secured to and movable with the caliper member while interconnected to the support member via a deformable elastomeric ring that aids in the return of the caliper member and the friction elements connected thereto upon termination of a braking operation.

Read the whole patent

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 November 24, 1989 and granted November 14, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 24, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 24, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 24, 1989
GrantedNovember 14, 2000
Term endedNovember 24, 2009
Patent numberCA 2003809 C
Classification (IPC)F16D65/09 +2 more

Sources & verification

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