Toothbrush
CA 1264105 C · Owner: Coronet-Werke Heinrich Schlerf Gmbh · Inventors: Weihrauch, Georg
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a toothbrush with a body providing a brush head and a handle and bristles fastened to the brush head a hygienic, bacteria-avoiding construction is obtained in that the body and bristles are made of the same material and are welded to one another so that the brush head is free of empty space. Further with this construction a larger number of bristles can be applied to achieve a better cleaning and massaging effect and the dimensions of the brush head can be reduced.
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 January 2, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 2, 2007.
- 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.