Antithrombin composition and process for preparation thereof
CA 2114152 A1 · Owner: Ozaki, Keiko · Inventors: Ozaki, Keiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An antithrombin composition in the form of emulsion which comprises, together with a slovent a diluent, and an, emulsifier, N2-arylsulfonyl-L-arginineamide represented by the general formula (I):, ... (I), wherein R1 represents (2R,4R)-4-alkyl-2-carboxypiperidino group, R2 represents phenyl group or a condensed polycyclic compound residue as defined below, and said R2 optionally has one or more substituents selected from lower alkyl group lower alkoxy group or amino group substituted by lower alkyl group, said condensed polycyclic compound residue being a condensed polycyclic compound residue including a benzene ring, said benzene ring being bound to the sulfur atom of the sulfonyl group in …
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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 January 25, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 25, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 25, 2016.
- 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.