1-sulfo-2-oxoazetidine derivatives and their production
CA 1338539 C · Owner: Matsuo, Michiko · Inventors: Matsuo, Taisuke; Ochiai, Michihiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are compounds of the general formula: (I)C, (wherein R1 is amino, an acylated amino or a protected amino group, X is hydrogen or methoxy, and R is an organic residue attached to the azetidine ring through a carbon atom and salts and esters thereof. Many of these compounds have antimicrobial and/or .beta.-lactamase-inhibitory activity and are of value as antimicrobial drugs for human beings and domesticated animals.
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 20, 1996. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 20, 2013.
- 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.