Process for manufacture of products from reinforced polyester resins and composites therefore
CA 1251590 A · Owner: Mcdougal, John R. · Inventors: Mcdougal, John R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The specification describes a process for the manufacture of products from reinforced polyester resins and more, particularly, polyester resin systems which are reinforced with glass fibers. In accordance with the process encapsulated, reaction additives such as initiators remain functionally isolated in the blended molding materials until released by preselected process conditions. Products manufactured from reinforced polyester resins are widely used in automotive appliance, and other industries.
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 March 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 21, 2006.
- 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.