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Expired Canadian patentCanada

Belt conveyor with increased capacity

CA 2320614 C · Owner: Green, Mat · Inventors: Green, Mat; Eberle, Marc

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

A belt conveyor for conveying granular material comprises a tube and a hopper. Guide members guide the belt from a flat orientation as the belt leaves the lower roller into a cupped orientation as the belt enters the hopper. The cupped orientation ins maintained by sliding contact at an interface between the lower surface of the belt and the hopper walls as the belt passes through the hopper. Left and right baffle members are attached along the hopper side walls and thereby prevent the granular material from sliding down the hopper walls into contact with the interface between the lower surface of the belt and the hopper walls. The belt has a width that is substantially fully exposed to …

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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 September 20, 2000 and granted June 17, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 20, 2000
GrantedJune 17, 2003
Term endedSeptember 20, 2020
Patent numberCA 2320614 C
Classification (IPC)B65G49/00 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedSep 20, 2000Patent grantedJune 17, 2003Term endedSep 20, 2020

Sources & verification

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