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Expired Canadian patentCanada

Multiaxial fabric having reduced interference pattern

CA 2606320 C · Owner: Hawes, John M. · Inventors: Quigley, Scott; Rydin, Bjorn; Donovan, James G.

CIPO record

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Abstract From the Canadian patent

The present invention relates to papermaking fabric and the method of producing , thereof. The present invention provides a multiaxial press fabric with reduced caliper , variation to improve press distribution and reduce sheet making. Specifically the , present invention provides a multilayer multiaxial fabric for a paper machine having a , reduced interference pattern by introducing "non-uniformity" into each layer in such a , way that the net non-uniformity effect is reduced and accordingly improved dewatering , uniformity. The present invention also provides a method of forming such a multilayer , multiaxial fabric.

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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 April 20, 2006 and granted February 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 20, 2026.
  • 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.
FiledApril 20, 2006
GrantedFebruary 24, 2015
Term endedApril 20, 2026
Patent numberCA 2606320 C
Classification (IPC)D21F1/10 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 20, 2006Patent grantedFeb 24, 2015Term endedApril 20, 2026

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