Rubber pads
CA 2263010 C · Owner: Bridgestone Corporation · Inventors: Nakayama, Koji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A rubber pad comprises a support plate having substantially the same shape as an outer surface of an iron shoe plate provided on its outer surface with lugs a rubber block vulcanized and adhered to the support plate wherein the support plate is provided with a bolt or a female member fixed to at least one side face of the support plate a hook member fixed to the support plate at a position opposite to the bolt or female member. Further the rubber pad is provided with a fastening member securing the rubber pad to the iron shoe plate through another female member or bolt.
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 February 25, 1999 and granted October 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 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.