Cycle
CA 1070727 A · Owner: Lucas Industries Limited · Inventors: Davidson, Charles P. D.; Bottoms, Harry S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electrically assisted cycle wherein the electrical assistance is provided by an electric drive assembly carried on the frame of the cycle and powered by a battery also carried by the frame. The output of the drive assembly is coupled to the driven wheel of the cycle so that operation of the electric drive assembly can propel the cycle. The drive assembly is mounted on the frame for limited movement relative to the frame against the action of a resilient bias provided by rubber mounting bushes. An electrical switch is operated by movement of the drive arrangement relative to the frame and the electrical switch is arranged in the energising circuit of the motor of the electric drive …
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 29, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 29, 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.
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.