Use of biguanide derivatives for making a medicine having a wound healing effect
CA 2410025 C · Owner: Franck, Gisele · Inventors: I/Achib, Maria Conception; Sasaki, Nobumichi-Andre; Bakala, Joanna
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns the use of biguanide derivatives of general formula (I) wherein: groups R1 and R2 represent independently of each other, a hydrogen atom a C¿1?-C¿7? alkyl group, a cycloalkyl group a heterocycle, a C¿2?-C¿7? alkenyl group an aryl group, an aralkyl group, an aryloxyalkyl group or a heteroaryl group or R1 and R2 together represent a C¿2?-C¿7? alkylene group capable of containing one or several heteroatoms and group R3 represent a primary secondary or tertiary amine and their pharmaceutically acceptable salts for making a medicine having a wound healing effect said medicine being in a pharmaceutical form for topical use.
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 23, 2001 and granted September 6, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 23, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 23, 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.
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.