Roller massaging apparatus
CA 2000002 C · Owner: Nihonkenkozoshinkenkyukai Co. Ltd. · Inventors: Masuda, Isamu
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 a roller massaging apparatus performing massage by applying pushing pressure on a human body by means of a pushing pressure roller. The pushing pressure roller is supported rotatably on an operating hole of the pushing pressure roller for inserting an operating shaft, and is formed with an inner diameter large enough for the shaft diameter of the operating shaft. A cavity part is formed by the hollow hole between the shaft and the inner peripheral surface of the pushing pressure roller on the operating shaft. In such a construction, even if the pushing pressure roller is deformed elastically this deformation is absorbed by the cavity part, and the rolling …
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 October 2, 1989 and granted September 27, 1994. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 2, 2009.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 2, 2011.
- 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.