Expired Canadian patentCanada
Triazine-urea grease thickening agents
CA 1063110 A · Owner: Shell Canada Limited · Inventors: Wulfers, Thomas F.
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Triazine-urea compounds having the structural formula wherein R is an aliphatic hydrocarbyl radical of 16 to 22 carbon atoms, m is 0 or 1 and n is 0 or 1 are excellent, thickening agents for grea??s employed in high temperature applications.
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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 September 25, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 25, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Filed—
GrantedSeptember 25, 1979
Term endedSeptember 25, 1996
Patent numberCA 1063110 A
Classification (IPC)C07D251/70 +1 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.