Interdental brush
CA 2545264 C · Owner: Nakatsuka, Hirohisa · Inventors: Takano, Hidekuni; Tsurukawa, Naoki; Nakatsuka, Hirohisa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides an interdental brush and a cap, said brush having a good handling property and a low manufacturing cost, said brush being stored with the cap on while adjusting the brush body at any angle. The handle member (3) supporting the brush body (2) includes a handle body (6), an arm (12) extending from one end of the handle body (6), a brush support (13) that holds a base of the brush body (2), a first hinge (14) that connects the tip of the arm (12) and one end of the brush support (13) in a freely rotating manner, an operating portion (15) provided slidably at the other end of the handle member (3) and a , second hinge (16) that connects the tip of the …
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 11, 2004 and granted March 13, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 11, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.