Toothbrush assembly having an environmentally safe polymer battery
CA 2504949 A1 · Owner: Colgate-Palmolive Company · Inventors: Kemp, James; Masters, James G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention discloses a powered (30) or manual (10) toothbrush having a polymer battery (26) as a power source. The polymer battery (26) contains no heavy metals, making it environmentally safe and contains no , alkaline, making it physically safe. The polymer battery (26) is inexpensive and rechargeable, making it an economical power source for the toothbrush (10 30). The small size of the polymer battery (26) saves space in the toothbrush housing, enabling the housing to be smaller and saving on materials of construction. The flexible nature of the polymer battery (26) enables it to be shaped to fit into or around the periphery of the toothbrush housing design.
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 7, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 7, 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.