Expired Canadian patentCanada
Methyl 1,1,3,3-tetramethylbutyl ether
CA 1085877 A · Owner: Sun Tech, Inc. · Inventors: Lyons, James E.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The compound methyl 1,1,3,3-tetramethylbutyl ether having the formula, the compound may be used as a solvent in laquers paints, inks, latex paints and a mutual solvent for oil-soap mixtures.
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 September 16, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 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.
FiledFebruary 7, 1977
GrantedSeptember 16, 1980
Term endedSeptember 16, 1997
Patent numberCA 1085877 A
Classification (IPC)C07C43/04 +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.