Automotive sound-proof materials and damping materials therefor
CA 1322209 C · Owner: Honda Giken Kogyo Kabushiki Kaisha (Also Trading As Honda Motor Co. Ltd .) · Inventors: Yamashita, Tsuyoshi; Fujii, Hideo; Suzuki, Hiroshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An automotive sound-proof and damping material is disclosed having a damping material for attachment to a vehicle surface such as a dash, a sound-absorption material and a surface material integrally formed together. The damping material has an adhesive damping sheet containing a petroleum resin and a moldable plastic constraining material.
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 September 14, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 14, 2010.
- 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.