Bicycle transmission
CA 1098733 A · Owner: Lapeyre, Fernand S. · Inventors: Lapeyre, Fernand S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A multi-speed transmission located at the drive pedal hub of a bicycle that is uniformly operable in response to pedal manipulation under all conditions of wheel operation and which includes a plurality of change speed gears journalled on the pedal drive shaft disposed in constant running engagement with corresponding companion gears and an associated drive pedal responsive shifting mechanism for selectively coupling engagement to the pedal drive shaft to provide a plurality of preselectable and different transmission ratios for the main pedal drive sprocket.
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
- Granted April 7, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 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.
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.