Indane derivatives
CA 1061362 A · Owner: Hexachimie · Inventors: Payne, Trevor G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides new compounds of formula I, I, wherein R1 is lower alkyl R2 is hydrogen or lower alkyl, R3 is hydrogen or lower alkyl R4 is hydrogen or lower alkyl, R5 is hydrogen chlorine or lower alkyl, and, each of, R6 ana R7 is hydrogen or, when R5 is hydrogen, R6 may also be chlorine or lower alkyl, and R7 chlorine or lower alkyl useful as anti-phlogistic and anti-arthritic agents.
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 August 28, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 28, 1996.
- 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.