Dual system bicycle
CA 1294639 C · Owner: Wu, Ying-Hao · Inventors: Wu, Ying-Hao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dual system bicycle for hand and foot propelling operations including a handle device with a front link mechanism operatively installed on top of a front fork member fixed on a front wheel of a bicycle and a lever, device with a rear link mechanism movably connected between the front link and a pedal system installed in a lower portion of a frame structure and in the rear wheel through a chain wheel arrangement of the bicycle; thereby, the rider can use both hands and feet for propelling the bicycle, improving his bodily fitness and increasing the moving speed of the bicycle. Alternatively the dual system bicycle can be easily, changed into an ordinary bicycle mode for foot propulsion …
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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.