Canadian application, no grantCanada
Brush part for electric toothbrush
CA 2430849 A1 · Owner: Kramer, Hans · Inventors: Kramer, Hans
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A brush part for an electric toothbrush in which tufts of bristles are arranged in polygons, and in which the tufts of bristles lean either around , the polygons or inwardly and outwardly so that the tuft alignments converge , and preferably cross.
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 December 3, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 3, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 3, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 3, 2001
GrantedNo grant recorded
Term endedDecember 3, 2021
Patent numberCA 2430849 A1
Classification (IPC)A61C17/26
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.