Canadian application, no grantCanada
Thermal process for the preparation of a telomeric alkyl iodide
CA 2304755 A1 · Owner: Petrov, Viacheslav A. · Inventors: Petrov, Viacheslav A.; Krespan, Carl George
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed herein is a telomerization process for preparing fluorinated alkyl iodide telomers, comprising telomerizing a starting polyfluoroalkyl iodide with a terminally unsaturated perfluoro olefin or monochlorofluoro olefin.
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 October 13, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 13, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 13, 1998
GrantedNo grant recorded
Term endedOctober 13, 2018
Patent numberCA 2304755 A1
Classification (IPC)C07C17/27 +2 more
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.