Triazole derivatives
CA 2031892 C · Owner: Kanamaru, Yoshihiko · Inventors: Taido, Naokata; Tokizawa, Minoru; Matsuda, Hideaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A triazole derivative is disclosed. The compound has the general formula:, (see formula I), wherein R1 and R2 represent a hydrogen atom or a lower alkyl group, or R1 and R2 together form a lower alkylene group R3, represents a lower alkyl group, and n denotes an integer of 0 to 2, provided that not both R1 and R2 are a hydrogen atom at the same time. The triazole derivatives and their salts are effective for curing or preventing deep-seated mycoses e.g. mycotic meningitis, mycotic infectious diseases of respiratory organs, fungemia, and urinary tract mycosis.
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 December 10, 1990 and granted August 1, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 10, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 10, 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.