Resin-sandwiched metal laminate, process and apparatus for producing the same and process for producing resin film for the resin-sandwiched metal laminate
CA 2007585 C · Owner: Matsuda, Ryouichi · Inventors: Takeuchi, Tamayuki; Satou, Michio; Nashiwa, Michio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A resin-sandwiched metal laminate a process and, apparatus for producing the same and a process for producing a resin film for the resin-sandwiched metal laminate are disclosed. The laminate comprises a pair of face and back metal sheets and a resin layer and is capable of passing an electricity between the face and back metal sheets, the resin layer being composed of an electroconductive filler-containing resin regions at the side edges of the resin layer in the width direction of the metal sheets and an electroconductive filler-free resin center region provided between the electroconductive filler-containing resin regions at the side edges.
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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 January 11, 1990 and granted November 30, 1993. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 11, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 11, 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.