Compositions and methods for reducing fire hazard of flammable refrigerants
CA 2543985 C · Owner: Tucker, Nancy Lynn · Inventors: Tucker, Nancy Lynn; Hammel, Howard S.; Leck, Thomas J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to compositions comprising flammable refrigerant, fire hazard-reducing agent and optionally a lubricant suitable , for use in a refrigeration or air conditioning apparatus. Further the present , invention relates to compositions comprising lubricant and fire hazardreducing agent and methods for reducing flammability of flammable refrigerant for delivering a fire hazard-reducing agent to a refrigeration or air conditioning apparatus, and for replacing a non-flammable refrigerant with a flammable refrigerant.
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 November 12, 2004 and granted July 22, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 12, 2024.
- 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.