Polynorbornene laminates
CA 1293434 C · Owner: Benedikt, George M. · Inventors: Benedikt, George M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
TITLE OF THE INVENTION:, POLYNORBORNENE LAMINATES ABSTRACT OF THE DISCLOSURE, Printed wiring boards useful for high frequency applications are obtained by laminating a copper foil pretreated with a silane to a polynorbornene prepreg. The prepreq is made by impregnating a fiberglass cloth with a ring-opening polymerized polymer. The copper foil is pretreated with a silane which is capable of improving the bond strength between the copper foil and a norbornene copolymer.
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
- Granted December 24, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 24, 2008.
- 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.