Plasticizer and patch containing the same
CA 2282583 A1 · Owner: Hisamitsu Pharmaceutical Co. Inc. · Inventors: Miyata, Daisuke; Hirashima, Nobuchika; Oda, Hideshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A plasticizer having an excellent effect of plasticizing a base of a patch and comprising 3-L-menthoxypropane-1, 2-diol having enhanced safety stability and , compatibility with the base; and a patch containing the plasticizer and excellent in the comprehensive evaluation of its application including increased attachment and closer fit to the skin and decreased pain when the plaster is detached.
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 January 14, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 14, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2020.
- 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.