Pharmaceutical composition for treating periodontal diseases
CA 1300515 C · Owner: Higashi, Kiyotsugu · Inventors: Hayashi, Shin'Ichi; Morisaki, Katsuhiko; Izumi, Reiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A pharmaceutical composition for treating periodontal diseases which comprises one or more therapeutically active ingredients dispersed in a carrier characterized, in that said carrier consists of (A) a water soluble polymer, and, (B) polymeric particles having a limited solubility in water, said particles being dispersed in said water soluble polymer.
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 May 12, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 12, 2009.
- 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.