Composite articles of metals and vulcanized rubber and process for their preparation
CA 2027210 A1 · Owner: Scholten, Heinz · Inventors: Scholten, Heinz; Jadamus, Hans; Richter, Klaus-Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite article composed of a metal component and a vulcanized rubber component, additionally containing an adhesion-promoting polyamide layer. The article is prepared by coating the metal element with polyamide preferably by powder, coating process and then vulcanizing the rubber mixture in intimate contact with the polyamide-coated metal. The composite articles of the invention are used for industrial purposes for, example as rollers, seals or vibration dampers.
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 October 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2012.
- 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.