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Expired Canadian patentCanada

Method for assembling a multi-piece absorbent article

CA 2250846 C · Owner: Cabell, David William · Inventors: Jezek, Robert John Sr.; Cabell, David William; Huber, Michael Thomas

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 method for assembling a multi-piece absorbent article. A chassis (22) is fed to a first assembly station at a first velocity. An ear web (122) is fed to a second assembly station at a second velocity which is less than the first velocity. An adhesive tape substrate (126) is fed to the second assembly station at a third velocity which is less than the second velocity. The adhesive tape substrate (126) is cut into individual tape tabs. The individual tape tabs are bonded to the ear web (122) at the second assembly station. The ear web (122) having the individual tape tabs bonded thereto is then fed to the first assembly station where it is cut into individual ear pieces which are …

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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 March 25, 1997 and granted June 25, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 25, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 25, 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.
FiledMarch 25, 1997
GrantedJune 25, 2002
Term endedMarch 25, 2017
Patent numberCA 2250846 C
Classification (IPC)A61F13/15

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedMarch 25, 1997Patent grantedJune 25, 2002Term endedMarch 25, 2017

Sources & verification

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