Molded gear
CA 2021158 A1 · Owner: Nitoh, Toshikatsu · Inventors: Suzuki, Masayuki; Tokushige, Kazutomo; Fukui, Kiichiro
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A molded gear is produced by molding a resin composition comprising:, (A) 100 parts by weight of a substantially straight chain polyarylene sulfide resin having a melt viscosity (at a temperature of 310°C and a shear rate of 1200/sec) of 1000 to 5000 P and, (B) 5 to 400 parts by weight of an inorganic filler.
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 July 13, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 13, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 13, 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.