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Expired Canadian patentCanada

Absorbent articles having pleated undergarment covering components

CA 2257722 C · Owner: Weinberger, Eric Patton · Inventors: Weinberger, Eric Patton

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

Absorbent articles such as sanitary napkins panty liners, and incontinence , pads are disclosed. The absorbent articles either have side flaps or undergarment covering components (or "side wrapping elements") the latter , preferably automatically wrap the sides of a wearer's panties and provide an alternative to conventional side flaps. The flaps or side wrapping elements are folded under the garment-facing side of the main body portion of the sanitary napkin toward the longitudinal centerline of the sanitary napkin. The folded portion is secured to the garment-facing side of the main body portion at a point laterally inward from the longitudinal side edges of the main body portion. …

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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

  • Filed June 10, 1997 and granted April 22, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 10, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 10, 1997
GrantedApril 22, 2003
Term endedJune 10, 2017
Patent numberCA 2257722 C
Classification (IPC)A61F13/56 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJune 10, 1997Patent grantedApril 22, 2003Term endedJune 10, 2017

Sources & verification

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