N-¬.alpha.-(4-R-1-PIPERAZINYL)-ALKYL BICYCLO ¬2.2.1 HEPT-5-ENE-2,3-DI-EXO-CARBOXIMIDE
CA 1184915 A · Owner: Sumitomo Chemical Co. Ltd. · Inventors: Asami, Yukio; Antoku, Fujio; Ishizumi, Kikuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides succinimide derivatives which can be represented by the following formula: (I), wherein X and Y are combined to form a group of the formula: (wherein A is an oxygen atom, a methylene group or an ethylene group and a full line accompanying a broken linc ( ? ) is a single bond or a double bond) and Z is a hydrogen atom or, X and Z are combined to form a group of the formula , (wherein A and a full line are each as defined above) and Y is a hydrogen atom R is a phenyl, group, optionally substituted with halogen C1-C4 alkyl, C1-C4 alkoxy or trifluoromethyl a 2-pyridyl group or a, 2-pyrimidinyl group and n is an integer of 3 or 4; and pharmaceutically acceptable acid …
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
- Granted April 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 2, 2002.
- 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.