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Expired Canadian patentCanada

Split input planetary transmission

CA 1077745 A · Owner: Deere And Company · Inventors: Smemo, Alfred S.

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

Abstract of the Disclosure A planetary transmission of a vehicle drive train comprises an input section including three planetary gear sets and three brakes that are selectively operable to condition the three gear sets for respectively establishing a forward converter drive a, reverse converter drive and a direct drive at an output shaft of the input section. The planetary transmission further comprises an output or range section coupled to the output of the input section. The output section includes three planetary gear sets connected together so as to form a three-stage planetary set and three brakes are respectively associated with the three gear sets and selectively operable to control …

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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 May 20, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 20, 1997.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedMay 20, 1980
Term endedMay 20, 1997
Patent numberCA 1077745 A
Classification (IPC)F16H3/44 +1 more

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedMay 20, 1980Term endedMay 20, 1997

Sources & verification

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