Air bag-containing cover
CA 2031893 A1 · Owner: Zushi, Takayasu · Inventors: Zushi, Takayasu; Sawada, Masami; Yoshiyasu, Mitsuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air bag-containing cover comprising: a surface skin layer made Or a thermoplastic polymer containing the following ingredients A B, C and D:, ingredient A : a hydrogenated derivative of a block copolymer comprising styrene an conjugated diene, ingredient B : an olefinic resin ingredient C : polyisobutylene with a viscosity average molecular weight of not greater than 70,000 and, ingredient D : a hydrocarbon series rubber softening agent with a kinetic viscosity at 40 C of not greater than 500 cSt and/or polybutene with a number average molecular weight of not greater than 2500, in which, blending ratio is : ingredient A = 40 to 80 % by weight, ingredient B = 5 to 30 % by weight …
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 December 10, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 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.