Lubricant
CA 2244130 A1 · Owner: Offiler, Michael Thomas · Inventors: Verbiest, Willem P.; Offiler, Michael Thomas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a lubricant concentrate composition comprising one , or more diamines and one or more quaternary ammonium compounds or soluble , salts thereof. The invention also relates to a method of lubricating a system such as a bottle washing or a conveyor belt system comprising the steps of , diluting a lubricant concentrate composition according to invention and , passing the resulting diluted lubricant through the system. The invention further relates to a lubricant composition obtainable by diluting the , concentrate composition of the invention with water to a suitable use concentration.
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 January 29, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 29, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 29, 2019.
- 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.