D-glaucine phosphate salt
CA 1108149 A · Owner: The Dow Chemical Company · Inventors: Wang, Samuel S. M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The phosphate salt of d-glaucine is prepared by reacting d-glaucine base with excess phosphoric acid. The glaucine salt has analgesic and antitussive properties and improved flavor characteristics. Pharmaceutical compositions, and methods of using the same are also described. 27,804C-F
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 September 1, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 1998.
- 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.