Benzo-fused cycloalkane and oxa- and thia-, cycloalkane trans-1,2-diamine derivatives
CA 1341011 C · Owner: Rajagopalan, Parthasarathi · Inventors: Scribner, Richard Merrill; Pennev, Penio; Rajagopalan, Parthasarathi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Benzo-fused cycloalkane and oxa- and thia-cycloalkane trans-1,2-diamine compounds of the formula: (see formula I and II), wherein A, B, C D, n, X, Y, R, R1, R2 and R3 are, as defined in the specification e.g. trans-3,4-dichloro-N-methyl-N-2-(pyrrolidin-1-yl)-5-methoxy- 1,2,3,4-tetrahydronaphth-1-yl)benzeneacetamide and the, pharmaceutically acceptable salts or N-oxides thereof are useful as analgesics and/or diuretics.
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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 May 30, 2000. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 30, 2017.
- 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.