Rubber material
CA 1204533 A · Owner: Hohyu Rubber Co. Ltd. · Inventors: Nakahira, Akitaro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Title: RUBBER MATERIAL, Abstract:, A rubber material which is a cured rubber having a hardness of from 30° as measured with an A-type rubber hardness tester to 15° as measured with an F-type rubber hardness tester and an impact resilience of not less than 50 %. The material has excellent vibrationproof, sound-proof, shock-absorbing or cushioning properties and is useful as a material for vibration-proof sound-proof, shock-absorbing and cushioning members.
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
- Granted May 13, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 13, 2003.
- 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.