Metal-filled, plateable structural adhesives for cyanate ester composites
CA 2188345 C · Owner: Hughes Aircraft Company · Inventors: Elias, William E.; Wallace, Andre R.; Punsly, Brian M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A family of adhesives is provided for bonding cyanate ester composite articles to- gether which is also plateable with metal once chemically etched. The adhesives comprise a polymeric matrix and a filler of metal powder or metal flakes. The polymeric matrix com- prises at least one polyepoxide resin and a curing agent. In practice the present adhesive is applied to the surface of cyanate ester composite articles to be bonded and is allowed to cure at room temperature. Thereafter the surface of the assembly is chemically etched and then plated with metal. The present adhesives enable the complete coverage of the cyanate ester composite assembly with the plated metal including the adhesive …
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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 October 21, 1996 and granted August 5, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 21, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 21, 2018.
- 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.