Stone massage therapy device
CA 2440790 A1 · Owner: Prehodka, Barry Victor · Inventors: Prehodka, Barry Victor; Diamond, Ronald T.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A container for heating stones is provided. Container comprises a basin with a bottom surface side walls, and an open top. The basin being is adapted to receive one or more stones in the space defined within the walls and above the bottom surface. A heat element is adapted to apply heat through the bottom surface in order to heat the stones. A plate has ribs and is adapted to be positioned over the bottom surface to support the stones.
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 September 12, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 12, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2025.
- 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.