Benzazepine derivatives
CA 1294617 C · Owner: E.R. Squibb & Sons, Inc. · Inventors: Floyd, David Mack; Krapcho, John; Das, Jagabandhu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The d-cis enantiomer of a compound having the formula:, wherein, R and R1 are each hydrogen or alkyl R is, hydrogen and R1 is alkenyl, alkynyl aryl, heter-, oaryl or cycloalkyl, or R and R1 together with the carbon atom to which they are attached are cycloalkyl;, R4 and R5 are each independently hydrogen halogen, alkyl, alkoxy, aryloxy, arylalkoxy ar-, ylalkyl, hydroxy, alkanoyloxy, -O-?-NX1X2 di-, fluoromethoxy, trifluoromethyl, -NX3X4 -S(O)malkyl or -S(O)maryl;, m is 0, 1 or 2; X1 and X2 are each independently hydrogen alkyl, aryl or heteroaryl, or X1 and X2 together with the nitrogen atom to which they are attached are a nitrogen containing heteroaryl;, X3 and X4 are each independently …
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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 January 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 21, 2009.
- 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.