Expired Canadian patentCanada
Methods of decreasing or preventing pain using spicamycin derivatives
CA 2425172 C · Owner: Borsook, David · Inventors: Borsook, David
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods of providing pain relief by administering a water-soluble derivative of spicamycin. Methods of using pain mediation agents are also 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
- Filed September 20, 2001 and granted February 1, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 20, 2001
GrantedFebruary 1, 2011
Term endedSeptember 20, 2021
Patent numberCA 2425172 C
Classification (IPC)A61K31/70 +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.