Expired Canadian patentCanada
Cyclopropyl derivatives of 1,2,4-triazine-5-one
CA 1087615 A · Owner: Ciba-Geigy Ag · Inventors: Schwarze, Werner; Leuchtenberger, Wolfgang; Klenk, Herbert
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Herbicidally active 1,2,4-triazin-5-one derivatives of the formula:, (I), wherein R represents an i-propyl or n-propyl radical.
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 October 14, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 14, 1997.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 30, 1979
GrantedOctober 14, 1980
Term endedOctober 14, 1997
Patent numberCA 1087615 A
Classification (IPC)C07D253/06
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.