Toothed belt drive or chain drive
CA 2269819 A1 · Owner: Volkswagen Aktiengesellschaft · Inventors: Hunkert, Steffen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a toothed belt drive or a chain drive with at least one toothed gearwheel (10) and at least one toothed belt or at least one chain. At least one tooth (A, B) of the toothed gear wheel (10) and/or at least one tooth of the toothed belt or at least one link of the chain has a flank geometry which is different from that of each of the other remaining teeth.
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 November 5, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 5, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2019.
- 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.