Bicycle with crank assembly suspension system
CA 2335953 C · Owner: Schwinn Acquisition Llc · Inventors: Busby, James S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bicycle having an independent equilibrium sensing suspension system (12) for its crank assembly (14). The bicycle comprises a main frame (16) having a rear assembly (32) pivotally connected thereto. Rotatably connected to the rear assembly is an eccentric link, while attached to and extending between the eccentric link (52) and the main frame is a sensing link (66). Rotatably connected to the eccentric link is the crank assembly of the bicycle which is mechanically coupled to the rear wheel via a chain extending therebetween.
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 June 15, 1999 and granted November 8, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 15, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 15, 2021.
- 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.