Expired Canadian patentCanada
Process for producing polybrominated higher alkylbenzenes
CA 1298583 C · Owner: Favstritsky, Nicolai A. · Inventors: Favstritsky, Nicolai A.; Borden, Dennis M.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Polybrominated higher alkylbenzenes may be produced by reacting the corresponding hydrocarbon material with bromine chloride in an excess bromine reaction medium in the presence of an antimony halide catalyst.
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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 April 7, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 7, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 16, 1988
GrantedApril 7, 1992
Term endedApril 7, 2009
Patent numberCA 1298583 C
Classification (IPC)C07C17/12 +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.