Expired Canadian patentCanada
Antispasmodic agent comprising creosote or its phenol derivative
CA 2005072 C · Owner: Baba, Tatsuya · Inventors: Baba, Tatsuya; Ogata, Norio
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are an antispasmodic agent comprising creosote or its component phenol derivative as an active ingredient, and the use of creosote or its component phenol derivative for treating spasms in a patient.
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 December 11, 1989 and granted December 6, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 11, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 11, 2011.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 11, 1989
GrantedDecember 6, 1994
Term endedDecember 11, 2009
Patent numberCA 2005072 C
Classification (IPC)A61K31/05 +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.