Process for producing chloro-methyl thiocyanate
CA 1079293 A · Owner: Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler · Inventors: Vanheertum, Rudolf; Offermanns, Heribert; Schwarze, Werner
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for producing chloro-methyl thiocyanate which comprises reacting bromo-chloro methane with an alkali or alkaline earth thiocyanate or with ammonium thiocyanate in the presence of water and in the presence of an onium salt as catalyst.
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 June 10, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 10, 1997.
- 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.