Expired Canadian patentCanada
Solution ibuprofen complexes, compositions and processes for preparing the same
CA 1298290 C · Owner: Cohen, George L. · Inventors: Markarian, Herand M.; Cohen, George L.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Therapeutic compositions including an ibuprofenheptakis (2,6-di-O-methyl)-.beta.-cyclodextrin complex are provided.
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 March 31, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 31, 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.
FiledAugust 12, 1987
GrantedMarch 31, 1992
Term endedMarch 31, 2009
Patent numberCA 1298290 C
Classification (IPC)C08B37/16 +2 more
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.