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Canadian application, no grantCanada

Variable torque converter

CA 2258249 A1 · Owner: Peckham, David Ronald · Inventors: Peckham, David Ronald

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 stepless infinitely variable transmission system has a casing with inlet (or outlet), holes, the casing housing an inlet and output shaft which are connected by series of, concentric cages, alternate cages being connected to the inlet and outlet shafts, alternately whilst remaining free to rotate on the other shaft respectively. The cages, comprise or includes series of blades which interact with a transmission medium which, is moved in a direction or directions in the casing between inlet and outlet so that the, blades experience changes in angular momentum of the transmission medium the, blades being curbed oppositely in sense in relation to whether their cage is an inlet or, …

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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 January 8, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 8, 1999
GrantedNo grant recorded
Term endedJanuary 8, 2019
Patent numberCA 2258249 A1
Classification (IPC)F16H41/00 +1 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJan 8, 1999Term endedJan 8, 2019

Sources & verification

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