Derivatives of 1,2,5-thiadiazole-1-oxides and 1,1- dioxides as histamine h2-antagonists
CA 1263115 C · Owner: Bristol-Myers Squibb Company · Inventors: Algieri, Aldo A.; Crenshaw, Ronnie R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A compound of the formula, wherein p is 1 or 2; n is an integer of from 2 to 4 inclusive; R2 and R3 each are independently hydrogen (lower)-, alkyl, (lower)alkenyl, (lowerl)alkynyl cyclo(lower)alkyl, cyclo(lower)alkyl(lower)alkyl hydroxy(lower)alkyl, (lower)-, alkoxy(lower)alkyl (lower)alkylthio(lower)alkyl, amino-, (lower)alkyl (lower)alkylamino(lower)alkyl, di(lower)alkylamino(lower)alkyl, pyrrolidino(lower)alkyl piperidino-, (lower)alkyl, morpholino (lower)alkyl piperazino(lower)-, alkyl, pyridyl(lower)alkyl amino, (lower)alkylamino, di(lower)alkylamino 2,2,2-trifiuoroethyl, 2-fluoroethyl, hydroxy (lower)alkoxy, 2,3-dihydroxypropyl, cyano cyano(lower)alkyl, amidino, (lower)alkylamidino …
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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
- Granted November 21, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 21, 2006.
- 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
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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.