Thermoformable conductive laminate and process
CA 2136355 C · Owner: Enlow, Howard H. · Inventors: Huffer, Scott W.; Young, Frederick; Buehne, William J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for making a thermoformable conductive plastic laminate for use in making plastic parts adapted for electrostatic spray painting of a uniform high quality paint finish includes forming a matte release coated casting sheet (20) casting an elec-, trically conductive polymer (24) in thin film form on the casting sheet drying to form a conductive primer coat (24) and transfer-, laminating the conductive coating to a thin thermoformable plastic face sheet , (26). The matte release coat (20) has fine particulate filler that transfer a micro-roughened matte surface to the conductive primer coat (24). The conductive primer (24) includes a polyester resin containing a fine particulate …
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 May 24, 1993 and granted July 23, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 2015.
- 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.