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Expired Canadian patentCanada

Interfolded multi-panel clip

CA 1309429 C · Owner: Kimberly-Clark Corporation · Inventors: Summerfield, Stanley 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

There is disclosed an interfold multi-panel clip of sheet material and interfold multi-panel dual webs which dual webs are more easily separated into clips. The dual web is comprised of two webs having staggered sheets. At the point of clip separation an additional perforation line in one web divides a separation sheet extending between the clips into two partial sheets which partial sheets are confined between the folds of the separated clips. Preferably the additional perforation line is located at an interfold line and divides the separation sheet into 3/8 and 5/8 partial sheets.

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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 27, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 27, 2009.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 5, 1988
GrantedOctober 27, 1992
Term endedOctober 27, 2009
Patent numberCA 1309429 C
Classification (IPC)B65H39/00 +1 more

Timeline

Timeline From CIPO dates

1989199219951998200120042007Application filedFeb 5, 1988Patent grantedOct 27, 1992Term endedOct 27, 2009

Sources & verification

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