Device for low-frequency electrotherapy
CA 1295704 C · Owner: Masaki, Kazumi · Inventors: Masaki, Kazumi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a novel device for low-frequency electrotherapy wherein a variable resistor is used to control the output level, comprising a resistive element; a sliding member slidable along with said resistive element; a moistureproof container enclosing said resistive element and sliding member; and a guide member, attached outside said container movable, magnetically in association with said sliding member; and that the output level is controlled by moving said sliding member.
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
- Granted February 11, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 11, 2009.
- 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.