Refinishing of the surfaces of bodies of a thermoplastic resin
CA 1090975 A · Owner: Stuart Plastics Ltd. · Inventors: Stuart, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A process for refinishing the surface of a body of a thermoplastic resin by subjecting the surface to treatment with a solvent. the surface is cooled, together with at least the material underlying the surfaces to a temperature, below the temperature at which the solvent can readily dissolve the resin. The surface of the body is then contacted with a solvent for a time sufficient to dissolve the surface but not to warm appreciably the inner layer of the body. The process avoids distortion in the refinished surface.
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 9, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 9, 1997.
- 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.