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Expired Canadian patentCanada

Forming fabrics

CA 2804933 C · Owner: Albany International Corp. · Inventors: Eagles, Dana Burton

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 papermaker's fabric for use as a forming fabric. The fabric may include bondable or meltable monofilament yarns which may be formed from materials that retain substantial strength and tenacity after thermal treatment. Further the remaining yarns in the forming fabric may be formed from materials that have a higher melting temperature than the monofilament material that will be thermally bonded or melted. When the fabric is heated these bondable or meltable yarns may bond or fuse with yarns in contact therewith or in close proximity thereto without effecting the remaining yarns. Doing so may improve seam strenth eleminate edge curl, improve sheet formation improve planarity, improve …

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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 2, 2005 and granted October 15, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 2, 2025.
  • 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.
FiledNovember 2, 2005
GrantedOctober 15, 2013
Term endedNovember 2, 2025
Patent numberCA 2804933 C
Classification (IPC)D21F1/10 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedNov 2, 2005Patent grantedOct 15, 2013Term endedNov 2, 2025

Sources & verification

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