Molded synthetic resin articles having thin metal film and production process thereof
CA 2027750 C · Owner: Ykk Corporation · Inventors: Funakawa, Shigeru; Yamaguchi, Yoshiharu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification discloses a molded synthetic resin article having a thin metal film on a surface of a base body molded from a synthetic resin. The thin metal film comprises a first vapor-deposited metal layer formed by vapor-phase deposition an undercoat, layer, a second vapor-deposited metal layer formed by vapor-phase deposition and a topcoat layer all the, layers being successively provided on the surface of the base body in the order set out above. A production process of the molded synthetic resin article is also described.
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 October 16, 1990 and granted July 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 16, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 16, 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.