Brush, such as for cleaning or sampling body tissue
CA 2633441 C · Owner: Zwart, Meindert Durk · Inventors: Zwart, Meindert Durk
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a brush (1) for cleaning or sampling body tissue. The brush (1) comprises a support (2) that is provided with at least one row (3) of brush hairs (5) as well as one second row (4) of brush hairs (16). The first and second rows are mutually parallel and are situated next to one another. Each brush hair (5,6) has a proximal end (7) facing the support (2) and a distal end (9) facing away from the support (2). The first row (3) of brush hairs (5) comprises a strip (30) that extends in the longitudinal direction of the first row (3) and a longitudinal side (32) of which is fixed to the support (2). The proximal ends (7) of the brush hairs (5) in the first …
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 22, 2005 and granted August 20, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2025.
- 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.