Expired Canadian patentCanada
Aza cyclohexapeptide compounds
CA 2118757 C · Owner: Merck Sharp & Dohme Corp. · Inventors: Balkovec, James M.; Black, Regina M.; Bouffard, Frances 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
Ceretain aza cyclohexapeptide compounds have been found to have superior antibiotic properties. Novel processes for their preparation are also described.
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 March 10, 1994 and granted May 14, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 10, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 10, 2016.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 10, 1994
GrantedMay 14, 2002
Term endedMarch 10, 2014
Patent numberCA 2118757 C
Classification (IPC)C07K7/56 +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.