Microwave-activated latent heat accumulator bodies
CA 2330630 A1 · Owner: Buttner, Dirk Carsten · Inventors: Buttner, Dirk Carsten; Fieback, Klaus; Gutberlet, Helmut
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 microwave-activated latent heat accumulator body (1, 17, 28, 30, 31, 32) with a paraffin-based latent heat accumulator material (6). The aim of the invention is to provide a device of this type which is simple to produce and which has advantageous properties for use. To this end the inventive latent heat accumulator body contains a hygroscopic material.
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 March 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2021.
- 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.