Compositions containing fluorine substituted olefins
CA 2826532 C · Owner: Honeywell International Inc. · Inventors: Pham, Hang T.; Thomas, Raymond H.; Wilson, David P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The use to e of tetrafluoropropenes, particularly (HFO-1234) in a variety of applications including refrigeration equipment, is disclosed. These materials are generally useful as refrigerants for heating and cooling as blowing agents, as aerosol propellants as solvent composition, and as fire extinguishing and suppressing agents.
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 April 29, 2005 and granted December 18, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 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.