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Expired Canadian patentCanada

Closure mechanism

CA 1324357 C · Owner: Gold, Danny · Inventors: Gold, Danny

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 closure mechanism for a tubular member open-ended, container or glove. A channel member coupled to the portion to be closed forms a channel of an opened length corresponding to a distance around the portion to be closed. The channel has a cross-sectional area and terminates with one or two closely spaced openings having an opening cross-sectional area. A stretchable cord is present within the channel and extends outward beyond at least one of the openings. The stretchable cord has an unstretched cross-sectional area and a stretched cross-sectional area. The unstretched cross-sectional area is larger than the stretched cross-sectional area and the opening cross-sectional area. By pulling …

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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 November 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 16, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 24, 1989
GrantedNovember 16, 1993
Term endedNovember 16, 2010
Patent numberCA 1324357 C
Classification (IPC)A41F1/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedMay 24, 1989Patent grantedNov 16, 1993Term endedNov 16, 2010

Sources & verification

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