Heterocyclic compounds
CA 1286662 C · Owner: Ciba-Geigy Ag · Inventors: Wenger, Jean; Winternitz, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention is concerned with novel 3-aryluracils of the formula, I, wherein R1, R2, R3, R4 R5 and R6 have the, significances given in the description as well as salts, thereof and their manufacture weed control compositions, which contain such compounds as the active substance and the use of the active substances or compositions for weed control. The invention is also concerned with herbicidally-active starting materials and weed control compositions containing these.
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 July 23, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 23, 2008.
- 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.