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Expired Canadian patentCanada

Sliding clasp fastener

CA 1069280 A · Owner: Lightning Fasteners Limited · Inventors: Warren, David

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 sliding clasp fastener is disclosed which has a pair of interengageable open-end fittings whereby the fastener stringers may be completely separated one from the other. Each fitting comprises hooking means at each side of a plane parallel to the tapes and transversely opposed surfaces to overlap surfaces of the other fitting. The two hooking means of each fitting are transversely aligned and extend beyond transversely opposed sides of a rib defined by the fitting towards the other fitting so that when, the fittings are interengaged, sides of the two hooking means of each fitting laterally overlap the sides of the rib of the other fitting. This invention is particularly appropriate for a …

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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 January 8, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 8, 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.
Filed—
GrantedJanuary 8, 1980
Term endedJanuary 8, 1997
Patent numberCA 1069280 A
Classification (IPC)A44B19/36

Timeline

Timeline From CIPO dates

198119831985198719891991199319951997Patent grantedJan 8, 1980Term endedJan 8, 1997

Sources & verification

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