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Expired Canadian patentCanada

Absorbent article containing an anhydrous deodorant

CA 1328987 C · Owner: Tanzer, Richard Warren · Inventors: Tanzer, Richard Warren; Bruemmer, Mary Anne; Gossens, Anthonette Adeline

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An absorbent article is disclosed for absorbing and retaining human exudate. The article includes an absorbent having a first surface facing the body of a user and a second surface aligned approximately opposite to the first surface. A liquid-impermeable baffle is positioned adjacent to at least the second surface of the absorbent while a fluid permeable cover is positioned adjacent to at least the first surface of the absorbent. A deodorizing mixture is positioned within the article and is positioned to remain dry for a substantial period of time. The mixture is an anhydrous non-buffer blend of at least basic and pH neutral odor absorbing particles.

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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 May 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2011.
  • 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 29, 1989
GrantedMay 3, 1994
Term endedMay 3, 2011
Patent numberCA 1328987 C
Classification (IPC)A61F13/15 +1 more

Timeline

Timeline From CIPO dates

19901993199619992002200520082011Application filedJune 29, 1989Patent grantedMay 3, 1994Term endedMay 3, 2011

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