Ab-021 antibiotics and process for producing them
CA 2004197 C · Owner: Spera, Silvia · Inventors: Pirali, Giorgio; Cassani, Giorgio; Andriollo, Nunzio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The AB-021 Antibiotics and the main components thereof: AB-021a Antibiotic and AB-021b antibiotic obtained by means, of the controlled aerobial cultivation of Streptomyces s. p. NCIB 40068 in an aqueous nutrient cultivation medium are, disclosed. The AB-021 Antibiotics show a biological activity against pathogenous fungi of agrarian cultivations of human, pathogenous fungi and of bacteria.
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 November 29, 1989 and granted June 30, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 29, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 29, 2011.
- 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.