Method of producing stratiform articles and products
CA 2054075 C · Owner: Asaa Inc. · Inventors: Savonuzzi, Andrea
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of producing self-supporting stratiform articles having a substrate layer formed of a thermoplastic polymer composition and at least one surface portion formed by a layer made of a cover material such as, a textile; the method comprises: providing a mould cavity in conformity with the article that is to be produced and having a female cavity portion and a male cavity portion; the female cavity portion has at least one surface in conformity with the covered surface portion; the method according to the invention is characterized by providing for each covered, surface portion, a preformed laminate comprising the cover layer and a thermoplastic shielding layer; the shielding layer acts …
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 October 23, 1991 and granted August 11, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 23, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 23, 2013.
- 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.