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Expired Canadian patentCanada

Automatic non-stage transmission for vehicles

CA 2006058 C · Owner: Shimaguchi, Hiromichi · Inventors: Shimaguchi, Hiromichi

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

A non-stage automatic transmission for vehicles includes a pair of adjustable pulleys supported for rotation within a transmission casing, and an endless metal belt which is wound around and frictionally engaged with the pulleys for rotation therewith. A mechanism for supplying lubricating oil between the belt and the pulleys is provided, along with an arrangement for directing lubricating oil, which has been scattered from the belt onto the transmission casing back toward, the belt.

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 December 19, 1989 and granted September 6, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 19, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 19, 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.
FiledDecember 19, 1989
GrantedSeptember 6, 1994
Term endedDecember 19, 2009
Patent numberCA 2006058 C
Classification (IPC)F16H9/12 +1 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedDec 19, 1989Patent grantedSep 6, 1994Term endedDec 19, 2009

Sources & verification

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