Expired Canadian patentCanada
Nitromethylene derivatives
CA 1062711 A · Owner: Shell Canada Limited · Inventors: Roman, Steven A.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Insecticidal and acaricidal active compounds of the general formule:, wherein X is 0 or S, a is 0 or 1 and B represents, for instance when, a is 1 and X = S 2-propynyl, 3-chloropropynyl or 2-thienylmethyl or, when a is 0 and X = 0, hydrogen or bromine.
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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 September 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 18, 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.
Filed—
GrantedSeptember 18, 1979
Term endedSeptember 18, 1996
Patent numberCA 1062711 A
Classification (IPC)C07D265/08 +1 more
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.