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Expired Canadian patentCanada

Single bar lock-stitch lofted fabric construction

CA 1194331 A · Owner: Polylok Corporation · Inventors: Duhl, Daniel

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 fabric having a novel lock-stitch construction is made on a stitch-through type machine equipped with a single knitting thread guide bar and comprises a flexible substrate such as a layer of textile yarn filling elements a plurality, of warp elements laid on the substrate in the longitudinal or warpwise direction, and knitting thread forming a multiplicity of warpwise stitches in a lock-stitch configuration. The knitting thread lock-stitch configuration comprises a sequence of three-needle atlas stitch courses on a given knitting thread wale to bind together into an integrated structure the substrate and warp elements, to secure the substrate and warp elements against relative …

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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 October 1, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 1, 2002.
  • 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 17, 1980
GrantedOctober 1, 1985
Term endedOctober 1, 2002
Patent numberCA 1194331 A
Classification (IPC)D04B23/08 +1 more

Timeline

Timeline From CIPO dates

19811984198719901993199619992002Application filedMarch 17, 1980Patent grantedOct 1, 1985Term endedOct 1, 2002

Sources & verification

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