Packing material for liquid chromatography
CA 1287615 C · Owner: Shirota, Osamu · Inventors: Koyama, Junichi; Fukui, Hiroshi; Shirota, Osamu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A packing material for liquid chromatography comprising particles having a silicone polymer film coated on substantially the entire surface thereof the, packing material being produced by a process comprising the steps of:, (a) bringing at least one silicone compound having the general formula (I):, (R1HSiO)a(R2R3SiO)b(R4R5R6SiO?)c (I) wherein R1, R2, and R3 represent, independently a, hydrocarbon residue having 1 to 10 carbon atoms which, may be substituted with at least one halogen atom R4, R5, and R6 represent, independently hydrogen or a, hydrocarbon residue having 1 to 10 carbon atoms which, may be substituted with at least one halogen atom a is, zero or an integer of 1 or more, b is …
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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 August 13, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 13, 2008.
- 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.