Expired Canadian patentCanada
Cyanophenoxy carboxylic acid compounds and compositions for delivering active agents
CA 2421575 C · Owner: Emisphere Technologies, Inc. · Inventors: Moye-Sherman, Destardi; Gschneidner, 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
Cyanophenoxy carboxylic acid compounds and compositions for the delivery of active agents are provided. Methods of administration treatment of disease , and preparation are provided as well.
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 5, 2001 and granted July 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 5, 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 5, 2001
GrantedJuly 12, 2011
Term endedSeptember 5, 2021
Patent numberCA 2421575 C
Classification (IPC)C07C255/00 +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.