Laminated molded articles and processes for preparing same
CA 2004041 C · Owner: Maeda, Toshiyuki · Inventors: Takehara, Tooru; Otawa, Yasuhiko; Maeda, Toshiyuki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In accordance with the present invention there are, provided laminated molded articles excellent in properties such as heat resistance, low-temperature resistance and the like and also excellent in soft touch and hand feel said, laminated molded articles comprising (a) a core layer composed of a synthetic resin (b) an interlayer (I) composed of a polyolefin foam polyurethane foam or thermoplastic elastomer foam formed, on said core layer, (c) an interlayer (II) composed of a modified polyolefin elastomer graft modified with at least one graft monomer selected from the group consisting of unsaturated carboxylic acids, derivatives thereof, unsaturated epoxy monomers and unsaturated hydroxy …
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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 28, 1989 and granted February 1, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 28, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 2011.
- 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.