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Expired Canadian patentCanada

Energy guide chain with guide stop

CA 2246451 C · Owner: Blase, Gunter · Inventors: Blase, Gunter

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 an energy guide chain (1) for cables and the like the chain members (2) thereof comprising opposing side walls (4) and upper and lower transverse members (5) or walls connecting said side walls and being , flexibly connected to each other. The energy guide chain forms a lower substantially linear section (lower strand 6) to which a sagging upper region (upper strand 8) is attached by means of a turnaround region (7) covering more than 180~, the lower side of the upper strand (8) sliding at least partially on the upper side of the lower strand (6). Individual chain members (2) are provided with guide stops (9) which prevent lateral movement of the opposite …

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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 February 10, 1997 and granted January 7, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 10, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 10, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 10, 1997
GrantedJanuary 7, 2003
Term endedFebruary 10, 2017
Patent numberCA 2246451 C
Classification (IPC)F16G13/16 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedFeb 10, 1997Patent grantedJan 7, 2003Term endedFeb 10, 2017

Sources & verification

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