Patent Yard Sign in
Expired Canadian patentCanada

Two stage operation master cylinder

CA 1090393 A · Owner: Bendix Corporation (The) · Inventors: Brown, George E.

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 control member responsive to a predetermined operational pressure signal for transferring that portion of an input force acting on a first diameter of a pressurizing piston in a two stage servomotor to a second diameter. The input force acts on the pressurizing piston and moves the second diameter section thereof in an outlet chamber to further pressurize the fluid therein and meet an operational demand associated with the input force.

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

  • Granted November 25, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 25, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 20, 1978
GrantedNovember 25, 1980
Term endedNovember 25, 1997
Patent numberCA 1090393 A
Classification (IPC)B60T11/20 +1 more

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedJune 20, 1978Patent grantedNov 25, 1980Term endedNov 25, 1997

Sources & verification

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