A composition of insulating fluid and process for the preparation thereof
CA 2632225 C · Owner: Gupta, Ashok Kumar · Inventors: Singh, Arun Kumar; Gupta, Ashok Kumar; Pandey, Naval Kishore
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a composition of insulating fluid and process for the preparation thereof that mainly contains alkyl benzenes. In addition to alkyl benzenes, the composition also contains an antioxidant an antifoaming agent, a pour point dispersant a corrosion inhibitor and a detergent-dispersant additive. The product of this invention has utility as an insulating fluid in electrical installations such as transformer.
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 December 29, 2005 and granted February 19, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 29, 2025.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.