Amide complexes
CA 1341289 C · Owner: Mutzel, Wolfgang · Inventors: Weinmann, Hans-Joachim; Raduchel, Bernd; Gries, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds of general Formula I, (see formula I) wherein, R3 is a saturated, unsaturated straight- or, branched-chain or cyclic aliphatic hydrocarbon residue of up to 16 carbon atoms or, if R4 is a hydrogen atom, a cycloalkyl group or an aryl or aralkyl group optionally substituted by one or several C1-C6-dialkylamino groups or by one or several C1-C6-alkoxy groups, R4 is a hydrogen atom a saturated, unsaturated, straight- or branched-chain or cyclic hydrocarbon residue of up to 16 carbon atoms or, R3 and R4 jointly mean a saturated or unsaturated 5- or 6-membered ring optionally substituted or containing an O, S, N atom or oxo substituent and Y is COOX or CONR3R4, are valuable complexing …
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 September 4, 2001. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 4, 2018.
- 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.