Colorful massaging ball structure
CA 2102588 A1 · Owner: Wu, Otto · Inventors: Wu, Otto
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A colorful massaging ball structure having an upper and lower hemisphere. A magnetic rod is provided within the center of the enclosure of the hemisphere. Along the surface of the hemisphere a plurality of, arch-shaped stripe having provided with movable massaging elements are provided. The movable elements are slidably moved along the provided slidable rails. A plurality of protrusions on the movable element provides a stimulation on the vital points of the fingers.
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 5, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 5, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 5, 2015.
- 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.