Injectable preparations containing cephalosporin medicament
CA 2026516 C · Owner: Kayano, Masanori · Inventors: Ishibashi, Yasuo; Kawahara, Masahiro; Machida, Ryoichi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A preparation containing a cephalosporin medicament is disclosed. The preparation comprises a cephalosporin derivative represented by the following formula:, (see fig. I), namely, 7.beta.-2-(5-amino-1,2,4-thiadiazol-3-yl)-(Z)-2fluoromethoxyiminoacetamido-3-(E)-3-(carbamoylmethylethylmethylammonio)-1-propen-1-yl-3-cephem-4carboxylate or a pharmaceutically acceptable salt thereof salt, lactose, citric acid or a sodium salt thereof, and arginine or a hydrochloride thereof; or the cephalosporin derivative represented by the formula (I) or a pharmaceutically acceptable salt thereof lactose, citric acid or a sodium salt thereof and sodium, chloride.
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 September 28, 1990 and granted February 17, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 28, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 28, 2012.
- 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.