Composite plate
CA 2199272 C · Owner: Klepsch, Wilhelm · Inventors: Klepsch, Wilhelm
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composite panel may be deep drawn into sanitary inserts (bath tubs, shower tubs, sinks lavabos). A coating, (3) of polymethyl methacrylate (PMMA acrylic glass) is, arranged on a substrate made in particular of acrylonitrilebutadiene-styrene (ABS). The acrylic glass coating consists of a mixture of impact-resistant modified PMMA and standard PMMA.
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 August 28, 1995 and granted January 29, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 28, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 28, 2017.
- 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.