Reactive dyes, preparation thereof and use thereof
CA 2609414 C · Owner: Dystar Colours Distribution Gmbh · Inventors: Reiher, Uwe; Russ, Werner; Schwaiger, Guenther
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to dyes of the general formula (1) (see formula 1), where M and X are each as defined in claim 1 dye mixtures comprising one or , more of the dyes of the general formula (1) and also one or more further fiberreactive , dyes, processes for their preparation their use and printing inks comprising same.
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
- Filed May 24, 2006 and granted September 10, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2026.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.