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Expired Canadian patentCanada

Quilted elastic composite fabric

CA 1281892 C · Owner: E.I. Du Pont De Nemours And Company · Inventors: Zafiroglu, Dimitri Peter

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

An elastic quilted composite fabric is provided. The quilted fabric has at least one gathered fibrous layer and at least one elastic fabric layer. The elastic fabric layer preferably includes 1/2 to 10% by weight of spandex fibers and is a stitch-bonded fabric whose elastic characteristics are not activated until after the various layers of the composite fabric have been quilted together.

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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

  • Granted March 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 31, 1989
GrantedMarch 26, 1991
Term endedMarch 26, 2008
Patent numberCA 1281892 C
Classification (IPC)D04H13/00

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedMarch 31, 1989Patent grantedMarch 26, 1991Term endedMarch 26, 2008

Sources & verification

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