Rifamycin compounds
CA 1074792 A · Owner: Archifar Laboratori Chimico Farmacologici S.P.A. · Inventors: Marsili, Leonardo; Rossetti, Vittorio; Pasqualucci, Carmine
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
NOVEL RIFAMYCIN COMPOUNDS", Abstract of the Disclosure Novel rifamycin compounds having high antibiotic activity. Such compounds are obtained by reacting 3-amino-rifamycin SV with an aldehyde, particularly an aliphatic or cycloaliphatic aldchyde.
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
- Granted April 1, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 1, 1997.
- 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.