Method for using molding
CA 2077944 A1 · Owner: Mihara, Masami · Inventors: Mihara, Masami; Fujii, Atsushi; Yamato, Hiroyasu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are disclosed a method of using a molding which comprises using a molding produced by thermoforming a sheet for thermoforming comprising a styrenic polymer having a high degree of syndiotactic configuration or a composition thereof in an atmosphere containing a chlorofluorohydrocarbon and also a method of using a molding which comprises using a molding produced by thermoforming a laminate comprising at least one surface layer of the above styrenic polymer or a composition thereof and another layer of a thermoplastic resin or a composition thereof in the same atmosphere as mentioned above. The moldings to be employed in the present invention are excellent in chemical resistance, …
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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 September 10, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 10, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2014.
- 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.