Highly heat-resistant label
CA 2431665 A1 · Owner: Age, Koji · Inventors: Matsumi, Shino; Age, Koji; Kumada, Hiroaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Highly heat-resistant labels usable with the adherends which can be exposed to high temperatures are provided. (1) A highly heat-resistant label comprising a support base and a hot-melt adhesive layer composed of a thermoplastic resin showing optical anisotropy in molten state and/or a thermoplastic polyimde. (2) A label of (1) further having an agglutinant, layer, wherein the agglutinant layer hot-melt adhesive, layer and support base are laminated in that order. (3) A label of (1) or (2) wherein the thermo-, plastic resin showing optical anisotropy in molten state comprises a completely aromatic liquid crystal polyester.
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 June 10, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2025.
- 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.