High purity alkoxytrimethylsilane fluids
CA 2303346 C · Owner: Archimica (Florida) Inc. · Inventors: Latham, William I. Iii; Legrow, Gary E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides high purity alkoxytrimethylsilane fluids of the general formula ROSiMe3 wherein Me is methyl and R is a monovalent aliphatic hydrocarbon substituent which ranges from 14 to about 20 carbons the fluid , being substantially free of organic and inorganic contaminants wherein the , alkoxytrimethylsilanes are produced by a novel process and can be readily , incorporated into cosmetic formulations containing organic components without heating and provided improved sensory characteristics compared to those provided by the corresponding alcohols.
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 11, 1998 and granted December 2, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 11, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 11, 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.
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.