Material for magnetic refrigeration, preparation and application
CA 2454440 C · Owner: Stichting Voor De Technische Wetenschappen · Inventors: Brueck, Ekkehard Hubertus; Tegusi, Ojiyed; De Boer, Frank Roelof
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 material that can be used for magnetic refrigeration, wherein the material substantially has the general formula (AYB1-Y)2+.DELTA.(c1-XDX) wherein A is selected from Mn and Co; B is selected from Fe and Cr; C and D are different and are selected from P As, B, Se, Ge, Si and Sb; and x and y each is a number in the range 0 - 1 and .DELTA. is a , number from (-0.1) (+0.1).
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 July 12, 2002 and granted December 2, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 12, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 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.