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Expired Canadian patentCanada

Transmission with a first-stage hydrostatic mode and two hydromechanical stages

CA 1095741 A · Owner: Orshansky Transmission Corporation · Inventors: Weseloh, William E.; Orshansky, Elias, Jr. (Deceased)

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Abstract of the Disclosure A power transmission having two planetary assemblies each having at least one carrier with planet gears at least, one sun gear, and at least one ring gear. A speed-varying module is connected in driving relation to the input shaft and in driving relationship to the sun gear or gears of the first planetary assembly. The speed-varying means may comprise a pair of hydraulic units hydraulically interconnected so that one serves as a pump while the other serves as a motor and vice versa one, of the units having a variable stroke and being connected in driving relation to the input shaft, the other unit which may, have a fixed stroke, being connected in driving relation …

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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 February 17, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 17, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 12, 1978
GrantedFebruary 17, 1981
Term endedFebruary 17, 1998
Patent numberCA 1095741 A
Classification (IPC)F16H47/04

Timeline

Timeline From CIPO dates

1979198119831985198719891991199319951997Application filedApril 12, 1978Patent grantedFeb 17, 1981Term endedFeb 17, 1998

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