Molding with in-mold coating
CA 1231812 A · Owner: The Sherwin-Williams Company · Inventors: Ongena, Robert E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of molding and coating in a mold a thermosetting substrate including the steps of forming the substrate between at least two separable dies which form a mold cavity therebetween curing the substrate to the point that the substrate is receptive to a coating, injecting the coating into the mold cavity at a pressure substantially in excess of the mold cavity pressure while maintaining the dies in position whereby the coating is forced over the desired surface of the substrate and curing the coated substrate.
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 January 26, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 26, 2005.
- 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.