Method for producing flat, laminated mouldings by back-embossing according to the preform method
CA 2135147 C · Owner: Nicolay, Albert · Inventors: Nicolay, Albert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for the production of laminated mouldings, such as internal linings or panellings of motor vehicles and the like, dimensionally stable parts in which a support part, is provided with a surface lamination and in which initially a preform having the same volume as the support part but not having, the same surface area with respect to the final shaping is produced. Utilizing the production heat inherent in it the said preform, is then connected by pressure action to the lamination by back-embossing with the thermoplastic material of the support part and is given its final shape by material flow processes. The invention is intended to improve back-embossing in …
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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 November 4, 1994 and granted February 16, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2016.
- 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.