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US4269187A Expired / Lapsed US ⏱️ 0.0 years remaining

Tampon

Assignee: Kao Corp
•
Filing: 1979-10-11
•
Granted: 1981-05-26
•
Expires: 1999-10-11
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Abstract

Abstract A tampon comprises an applicator having an outer cylinder and an absorbent material push-out portion and an absorbing material contained in said applicator, characterized in that the inner diameter of the rear end portion of said outer cylinder is smaller than the inner diameter of the barrel portion of said cylinder and said absorbent material push-out portion has a cavity in the center thereof and comprises a push-out top end contained in said outer cylinder and an inserting supporting piece connected to said push-out top end and folded outwardly from outer cylinder.

Inventors

  • 👤 Akira Sakurai
  • 👤 Yoshimi Tsuchiya
  • 👤 Hiroshi Mizutani

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:40
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/26; A61F13/263; Y; Y10; Y10S; Y10S604/00; Y10S604/904

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 93 words
A tampon comprising an applicator having an outer cylinder and an absorbent material push-out portion and an absorbing material contained in said applicator, characterized in that the inner diameter of the rear end portion of said outer cylinder is smaller than the inner diameter of the barrel portion of said cylinder and said absorbent material push-out portion has a cavity in the center thereof and comprises a push-out top end contained in said outer cylinder and an inserting supporting piece connected to said push-out top end and folded outwardly from said outer cylinder.
Claim 2
Dependent Claim 93 words
A tampon comprising an applicator having an outer cylinder and an absorbent material push-out portion and an absorbing material contained in said applicator, characterized in that the inner diameter of the rear end portion of said outer cylinder is smaller than the inner diameter of the barrel portion of said cylinder and said absorbent material push-out portion has a cavity in the center thereof and comprises a push-out top end contained in said outer cylinder and an inserting supporting piece connected to said push-out top end and folded outwardly from said outer cylinder.
Claim 3
Dependent Claim 46 words
A tampon as set forth in claim 1 wherein said absorbent material push-out portion comprises two inserting supporting pieces and notches to be engaged with each other are formed on said inserting supporting pieces at positions apart from said push-out top end by the same distance.
Claim 4
Dependent Claim 23 words
A tampon as set forth in claim 2 wherein the top end of said outer cylinder is covered with said inserting supporting pieces.

References Cited (Backward Citations)

CA700840A Cited
US2829646A Cited
US3059642A Cited
US3101713A Cited
US3628533A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-05-25 1984-11-24 1985-05-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-05-25 1988-11-24 1989-05-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-05-25 1992-11-24 1993-05-26 $7700.00 Window Closed / Lapsed

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