Ring-contracted macrolides
CA 1321581 C · Owner: Wind, Julie A. · Inventors: Wind, Julie A.; Kirst, Herbert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel 12-membered lactone and ll-membered lactone derivatives of erythromycin and the salts and ester derivatives of these compounds. The new erythromycin lactones have antimicrobial activity against certain Gram-positive pathogens such as Streptococcus Pyogenes and Gram-negative cocci such as Haemophilus influenzae. In addition, they are useful as intermediates to other macrolide derivatives.
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 August 24, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 24, 2010.
- 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.