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Expired Canadian patentCanada

Motor vehicle inertia and hill holding braking mechanism

CA 2086865 C · Owner: Olson, Otis J. · Inventors: Olson, Otis J.; Stout, Donald M.

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

An improved braking mechanism (100) is provided for use in conjunction with a change gear transmission (50) that is selectively engagable with a vehicle engine (4) by a clutch (3). Mechanism (100) has a piston (22) slidably received in a primary fluid chamber (34) that is operative to cause mechanism (100) to act as an inertia brake upon establishment of a first set of predetermined operating conditions. Piston (22) is also slidably received in a secondary fluid chamber (36) that is operative to cause mechanism (100) to act as a hill holding brake upon establishment of a second predetermined set of operating conditions.

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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 January 7, 1993 and granted December 25, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2015.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 7, 1993
GrantedDecember 25, 2001
Term endedJanuary 7, 2013
Patent numberCA 2086865 C
Classification (IPC)B60T7/12 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedJan 7, 1993Patent grantedDec 25, 2001Term endedJan 7, 2013

Sources & verification

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