Profiled tip power transmission belt
CA 2533366 C · Owner: Dayco Products, Llc · Inventors: Witt, Richard J.; Klein, Darrell
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A power transmission belt comprising a belt body having a length and defining at least one elongate rib (18), the rib having an exposed surface that engages a cooperating pulley, the exposed rib surface having at least one longitudinal groove (20) formed therein which reduces transverse modulus of the surfaces engaging the cooperating pulley and thereby reduces noise accompanying running of the belt.
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 July 30, 2004 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 30, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 30, 2026.
- 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.