Dispersed hydrated sodium borate compositions having improved properties in lubricating oil compositions
CA 2402958 C · Owner: Harrison, James J. · Inventors: Harrison, James J.; Nelson, Kenneth D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed are dispersed hydrated sodium borate compositions as well as additive packages and finished oil compositions comprising the same. The dispersed hydrated sodium borate compositions of this invention exhibit decreased turbidity and the finished oil compositions improved water tolerance when the hydroxyl to boron ratio is carefully controlled.
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 September 12, 2002 and granted August 9, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2024.
- 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.