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Expired Canadian patentCanada

Car seat with height adjustment mechanism

CA 2239458 C · Owner: Carnahan, Michael · Inventors: Warner, Robert John Jr.; Carnahan, Michael

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 adjustment mechanism for a car seat provides multiple vertical locking positions for adjusting the attitude of a seat with respect to an automobile seat cushion and back. The car seat has a base with forward and rear support walls each having a key way matching the profile of the stem portion of a locking plunger. The plunger has a forward handle portion and a pair of shoulder portions extending to the rear of the plunger which engage mating recesses in a key way formed in an adjustable support member. The adjustable support member is slidably arranged between the forward and rear support walls of the base. The plunger is spring biased by a spring mounted in a spring aperture formed in …

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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 May 29, 1998 and granted July 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 1998
GrantedJuly 8, 2003
Term endedMay 29, 2018
Patent numberCA 2239458 C
Classification (IPC)B60N2/16 +1 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMay 29, 1998Patent grantedJuly 8, 2003Term endedMay 29, 2018

Sources & verification

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