Metal complexes and use thereof
CA 1249265 A · Owner: Ciba Specialty Chemicals Holding Inc. · Inventors: Lienhard, Paul
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Novel metal complexes and use thereof, Abstract of the Dlsclosure The invention relates to novel 1:1 metal complexes of a divalent transition metal and an azo compound of the formula (1) (1), wherein, X is a hydrogen or a halogen atom an alkyl, alkoxy, aryloxy, nitro, acylamino ureido, arylureido, thioureido, thiocyano or sulfamoyl group or a phthalimido group which is unsubstituted or substituted by halogen atoms, Y is a hydrogen or halogen atom an alkyl or alkoxy group, and, R is an alkyl alkoxycarbonyl, carbamoyl or alkylcarbamoyl group or, wherein X and Y, together with two vicinal carbon atoms of the benzene ring, form a fused benzene or imidazolone ring. These metal complexes in …
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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 January 24, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2006.
- 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.