Expired Canadian patentCanada
Dipeptides which promote release of growth hormone
CA 2220055 C · Owner: Lefker, Bruce A. · Inventors: Carpino, Philip A.; Ragan, John A.; Lefker, Bruce A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of formula (I) are growth hormone releasing peptide mimetics which are useful for the treatment and prevention of osteoporosis.
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 May 29, 1995 and granted April 24, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 29, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 29, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 29, 1995
GrantedApril 24, 2001
Term endedMay 29, 2015
Patent numberCA 2220055 C
Classification (IPC)C07K5/07 +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.