Expired Canadian patentCanada
Primer for the metallisation of substrate surfaces
CA 2055352 C · Owner: Benda, Bruce · Inventors: Wolf, Gerhard D.; Gizycki, Ulrich V.; Sirinyan, Kirkor
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Primers, essentially consisting of a film former or matrix former, an additive, an ionic and/or colloidal nobel metal, a filler and a solvent, are suitable for coating substrate surfaces for subsequent chemical metallisation.
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 November 13, 1991 and granted October 26, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 13, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 13, 2013.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 13, 1991
GrantedOctober 26, 1999
Term endedNovember 13, 2011
Patent numberCA 2055352 C
Classification (IPC)C23C18/28
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.