Method for producing vinyl compounds
CA 2339737 A1 · Owner: Henkelmann, Jochem · Inventors: Keller, Peter; Henkelmann, Jochem; Preiss, Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method for producing vinyl compounds especially , vinyl ether compounds, whereby amino vinyl compounds are reacted while , retaining their vinyl groups, with substances that react with said amino vinyl compounds. The invention also relates to vinyl compounds that can be produced according to said method, preparations containing said vinyl compounds the , use of said compounds and the use of amino vinyl compounds in the production of vinyl compounds.
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 August 2, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 2, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2021.
- 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.