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Expired Canadian patentCanada

Conveyor apparatus

CA 2511701 C · Owner: Hadfield, David · Inventors: Thompson, Pete; Hess, Michael; Hadfield, David

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Conveyor apparatus for conveying solid material in a process vessel (66) including a first baffle set (4) comprising a plurality of inclined baffles (6) located above the eductors and arranged to restrict upward flow of solids in the direction of the said movement of the solids. A second baffle set (10) may be used to prevent particles rebounding from the end wall and back into the upper levels of the vessel (66).

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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 July 8, 2005 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 8, 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.
FiledJuly 8, 2005
GrantedJune 5, 2012
Term endedJuly 8, 2025
Patent numberCA 2511701 C
Classification (IPC)B01D21/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 8, 2005Patent grantedJune 5, 2012Term endedJuly 8, 2025

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.