Dual wheel driven bicycle
CA 2101422 A1 · Owner: Becoat, Billie J. · Inventors: Becoat, Billie J.; Becoat, Billie J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The dual wheel driven bicycle utilizes an elongate flexible shaft (50) or cable for transferring rotational motion or torque to the front wheel. In the preferred embodiment a rear ring gear (34), is mounted on the rear wheel to drive a rear gear assembly (36). One end of the elongated flexible shaft (50) is connected to and driven by the rear gear assembly (36); the opposite end of the elongate flexible shaft (50) is connected to a front gear assembly (55) which engages and drives a front ring gear (56) connected to the front wheel. A freewheel assembly (60) is interposed between the front ring gear (56) and the hub (100) of the front wheel to facilitate cornering. In an alternative …
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 January 21, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2014.
- 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.