Antiphlogistic analgestic adhesive
CA 1188613 A · Owner: Nitto Electric Industrial Co. Ltd. · Inventors: Wada, Yasushi; Ushiyama, Keiichi; Nagai, Hidetaka
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antiphlogistic analgesic adhesive which comprises, a flexible substrate and, an indomethacin containing pressure-sensitive adhesive layer closely contacting said flexible substrate wherein said pressure-sensitive adhesive layer comprises a mixture of, (a) indomethacin, (b) a copolymer of (i) an alkyl acrylate having 4 to 11 carbon atoms in the alkyl moiety and (ii) a functional monomer having a functional group in the molecule thereof and/or a vinyl monomer which has, pressure-sensitive adhesive properties at room temperature and, (c) an absorption accelerating assistant which maintains said indomethacin in a solubilized state in said copolymer and has skin diffusibility.
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
- Granted June 11, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 11, 2002.
- 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.