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Expired Canadian patentCanada

Vibration-preventing rubber device

CA 1262462 C · Owner: Kunihiro, Motoo · Inventors: Kunihiro, Motoo; Makibayashi, Katsunori; Murase, Kenji

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

This invention relates to a multiple mounting vibration-preventing device wherein a partition wall is interposed between an upper plate and a lower plate. An upper vibrationpreventing rubber member is interposed between the partition wall and the upper plate so as to define an upper damper liquid chamber therebetween. A lower vibration-preventing rubber member is interposed between the partition wall and the lower plate so as to define a lower damper liquid chamber therebetween. The upper damper liquid chamber communicates with the lower damper liquid chamber through an orifice. Either or both the upper damper liquid chamber and the lower damper liquid chamber is horizontally divided into a …

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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

  • Granted October 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 24, 2006.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 7, 1986
GrantedOctober 24, 1989
Term endedOctober 24, 2006
Patent numberCA 1262462 C
Classification (IPC)F16F5/00 +1 more

Timeline

Timeline From CIPO dates

1987198919911993199519971999200120032005Application filedJuly 7, 1986Patent grantedOct 24, 1989Term endedOct 24, 2006

Sources & verification

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