6-acrylamidopenicillins and 7-acrylamidocephalosporins
CA 1056373 A · Owner: Glaxo Laboratories Limited · Inventors: Gregory, Gordon I.; Gregson, Michael; Webb, Godfrey B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel antibiotic compounds which are 7.beta.-acrylamidoceph- 3-em-4-carboxylic acids, and non-toxic derivatives thereof wherein the acrylamido group has the structure wherein A is aryl group and B is a substituted or unsubstituted lower alkyl, lower alkenyl or lower alkynyl group; or an aryl cycloalkyl or cycloalkenyl group. These compounds possess antibacterial activity against gram-positive and gram-negative organisms coupled with stability to .beta.-lactamases. The invention further relates to the administration of the compounds.
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 June 12, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 12, 1996.
- 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.