Anti-obesity drugs
CA 2134560 C · Owner: Shenfeld, Avner · Inventors: Shenfeld, Avner; Shinitzky, Meir
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Obesity is treated by the administration to a subject of a compound having the general formula (I): R4-(CH2)n-CO-, N(R1)-CH(R2)-CO(-R3) wherein R1 represents H or CH3; R2 represents a side chain of a naturally occurring amino acid; R3 represents OH, OCH2CH3 and NH2; n is 6-18; and R4 represents CH3 or a group having the general formula (II):, R3-CO-CH(R2)-N(R1)-COwherein R1, R2 and R3 have the above meanings. The compounds of formula (I) wherein R4 is a group of formula (II), are novel compounds.
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 April 27, 1993 and granted March 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 27, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 27, 2015.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.