Organosilicon compounds containing amino groups, their preparation and their use
CA 2211568 C · Owner: Dauth, Jochen · Inventors: Pfister, Joerg; Deubzer, Bernward; Hierstetter, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Amino-functional organosilicon compounds contain at least one terminal amino group, and at least one internal primary or secondary amino groups, bearing unsaturated hydrocarbon moieties bonded to silicon through alkylene, linkages. The organosilicon compounds are useful for example, as components , in, addition crosslinking compositions and free radical crosslinking compositions and, as fabric treating agents.
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 July 25, 1997 and granted April 9, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 25, 2019.
- 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.