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Expired Canadian patentCanada

Non appended closure system for disposable products

CA 1305291 C · Owner: Aledo, Eduardo Cesar Andreo · Inventors: Liberman, Susana Alcira; Aledo, Eduardo Cesar Andreo

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

The present invention refers to a closure system (10) for disposable products, capable of being used several times with no damage to the product wherein an adhesive film (16) is directly applied over the inner liquid permeable surface (14) of the product on relatively opposite ends with relation to the longitudinal axis thereof, eliminating the use of strips edges, projections or the like. J-12.108

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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 July 21, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 21, 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.
FiledDecember 10, 1986
GrantedJuly 21, 1992
Term endedJuly 21, 2009
Patent numberCA 1305291 C
Classification (IPC)A61F13/15 +1 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedDec 10, 1986Patent grantedJuly 21, 1992Term endedJuly 21, 2009

Sources & verification

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