Expired Canadian patentCanada
Multiple band continuously variable transmission
CA 2261794 C · Owner: Van Blaricom, Terry M. · Inventors: Van Blaricom, Terry M.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An improvement in a multiple band continuously variable transmission that provides equal speed ratios for each band (5) throughout a range of overall transmission speed ratios through the use of radially contoured pulley sheaves (4).
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 July 18, 1997 and granted February 11, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 18, 2019.
- 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 18, 1997
GrantedFebruary 11, 2003
Term endedJuly 18, 2017
Patent numberCA 2261794 C
Classification (IPC)F16H9/16 +2 more
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.