Expired Canadian patentCanada
Industrial apparatus
CA 2563951 C · Owner: Bell, William Graham · Inventors: Bell, William Graham
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 pulveriser mill , has a grinding set (2) supported by a support table (4), the support , table having on its underside supporting parts 8', 10', 12'. By , such means the working life of the support table may be extended.
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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 March 17, 2005 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 17, 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.
FiledMarch 17, 2005
GrantedJuly 2, 2013
Term endedMarch 17, 2025
Patent numberCA 2563951 C
Classification (IPC)B02C15/04
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.