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Expired Canadian patentCanada

Monofilament low caliper one-and-a-half layer seamed press fabric

CA 2505205 C · Owner: Albany International Corp. · Inventors: Kornett, Glenn

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 one-and-a-half layer monofilament fabric for use as a low-caliper seamed press fabric on a papermaking machine. The fabric is endless woven with seaming loops formed by adjacent unstacked MD wefts. The seaming loops are oriented perpendicular to the plane of the base fabric for easier connection and seaming. When the fabric is placed under load the loops collapse back to , produce a seam area having the same low caliper as the base fabric. Further this unstacked fabric structure produces a larger web cake than other fabrics having a similar caliper.

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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 November 19, 2003 and granted March 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 19, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 19, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 19, 2003
GrantedMarch 20, 2012
Term endedNovember 19, 2023
Patent numberCA 2505205 C
Classification (IPC)D21F7/10 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 19, 2003Patent grantedMarch 20, 2012Term endedNov 19, 2023

Sources & verification

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