Bicycle moved by front and rear drive method of pedal
CA 2391581 A1 · Owner: Heo, Hyun Kang · Inventors: Heo, Hyun Kang
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a bicycle with a forward and backward pedaling system which drives a bicycle forward in either a forward or a backward pedaling. This invention relates to a bicycle moved by front and rear drive method of pedal which comprises a backward driving sprocket (6) which is installed on a driving shaft (5) for a load driving in forward direction but a no-load driving in backward direction; a forward driving sprocket (7) which is installed on the driving shaft (5) for a load driving in forward direction but a no-load driving in backward direction and connects an upward induction , sprocket (12) which is installed for a no-load driving on the top of a support part …
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 August 31, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 31, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 2022.
- 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.