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Expired Canadian patentCanada

Beadless woven stringer for a spiral slide fastener

CA 1082893 A · Owner: Textron Inc. · Inventors: Bainer, David C.

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 beadless woven slide fastener has a pair of stringers each with convolutions of a coil of filamentary material attached to a woven carrier tape wherein the tape adjacent the coil is reduced in thickness to accommodate the flanges of a slider. CROSS REFERENCE TO RELATED APPLICATION This application is a continuation-in-part of my application Serial No. 343,078 filed March 20 1973 which, is incorporated herein by reference.

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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 August 5, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 5, 1997.
  • 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 10, 1976
GrantedAugust 5, 1980
Term endedAugust 5, 1997
Patent numberCA 1082893 A
Classification (IPC)A44B19/00 +2 more

Timeline

Timeline From CIPO dates

1977198019831986198919921995Application filedMarch 10, 1976Patent grantedAug 5, 1980Term endedAug 5, 1997

Sources & verification

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