Vibratory electric toothbrush
CA 2415420 A1 · Owner: Weng, Shixing · Inventors: Weng, Shixing
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to a battery powered electric toothbrush whose toothbrush head can, vibrate laterally relative to the longitudinal axis of the toothbrush. The electric toothbrush, comprises a handle containing a drive head eccentrically mounted to a motor shaft, a, toothbrush head, and a sleeve intermediate the toothbrush head and the handle accommodating a swing arm. The swing arm has a head portion adjoining the toothbrush, head pivotally attached in the forward end of the sleeve and has a tail portion provided, with a transverse groove receiving the drive head. The head portion of the swing arm is, bent to facilitate itself in contact within the forward end of the sleeve to …
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 January 8, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 8, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 8, 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.