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Expired Canadian patentCanada

Conveying system with conveyor chains

CA 2114444 C · Owner: Weber, Bruno · Inventors: Weber, Bruno

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

The invention relates to a conveying system with at least two equidistant conveyor chains. In order that the chain links of the conveyor chains also move synchronously on conveying path portions in which the radii of curvature of the individual chain paths differ from one another, the chain link spacings can be adapted by corresponding control means to the ratio of the radii of curvature of the individual chain paths.

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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 January 28, 1994 and granted June 5, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2016.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 28, 1994
GrantedJune 5, 2001
Term endedJanuary 28, 2014
Patent numberCA 2114444 C
Classification (IPC)B65G17/30 +1 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJan 28, 1994Patent grantedJune 5, 2001Term endedJan 28, 2014

Sources & verification

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