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Expired Canadian patentCanada

Coated fabric suitable for preparing releasably attachable abrasive sheet material

CA 2116371 C · Owner: Kimberly-Clark Corporation · Inventors: Kronzer, Francis Joseph

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 coated fabric having a first surface engagable by hooks and a second surface having thereon a continuous coating of a synthetic polymeric composition. An example of a surface engagable by hooks is a surface having a plurality of loops. The fabric is especially suitable for use in the preparation of a releasably, attachable abrasive sheet material. The continuous coating of synthetic polymeric, material typically is applied by melt extrusion.

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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 24, 1994 and granted October 14, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 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.
FiledFebruary 24, 1994
GrantedOctober 14, 2003
Term endedFebruary 24, 2014
Patent numberCA 2116371 C
Classification (IPC)D06N3/00 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 24, 1994Patent grantedOct 14, 2003Term endedFeb 24, 2014

Sources & verification

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