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US4294253A Expired / Lapsed US ⏱️ 0.0 years remaining

Tampon with a non-woven wrap

Assignee: Dr Carl Hahn GmbH
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Filing: 1979-12-03
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Granted: 1981-10-13
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Expires: 1999-12-03
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Abstract

Abstract A catamenial tampon is provided in the form of absorbent material enveloped by a liquid permeable cover which is then folded and compressed into a cylindrical shape. The enveloped absorbent material is in the form of a flat cushion and is first folded into front, central and rear sections with the front and rear sections overlying the central section. A withdrawal cord is looped around the first folded cushion which is then folded around the withdrawal cord and compressed into the final tampon shape. The resulting tampon expands when wet into a cup-shaped configuration.

Inventors

  • 👤 Axel Friese

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 22:14
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/20; A61F13/34; A61F13/2051; A61F13/2065; Y; Y10; Y10S; Y10S604/00; Y10S604/904; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/101; Y10T156/1015; Y10T156/1036; Y10T156/1051; Y10T156/1052; Y10T156/1054

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 188 words
An absorbent body suitable for compressing into a catamential tampon comprising: a flat cushion of absorbent material enveloped by a liquid permeable cover and having a top face, said cushion extending in a longitudinal direction and consisting of three longitudinally successive sections; namely, a front section defined by a front edge and a front fold line, a central section defined by said front fold line and a rear fold line, and a rear section defined by said rear fold line and a rear edge; said front and rear sections being folded onto the top face of said central section about said front and rear fold lines, respectively, with said front and rear edges facing one another; a withdrawal cord fastened longitudinally around said folded cushion and dividing said cushion therewith into two lateral sections; the two lateral sections being folded toward each other about said withdrawal cord with the folded front and rear sections facing each other; said absorbent body further provided with a reinforcing strip of material sandwiched between the absorbent material and the liquid permeable cover at the area of the cushion underlying the withdrawal cord.
Claim 2
Dependent Claim 188 words
An absorbent body suitable for compressing into a catamential tampon comprising: a flat cushion of absorbent material enveloped by a liquid permeable cover and having a top face, said cushion extending in a longitudinal direction and consisting of three longitudinally successive sections; namely, a front section defined by a front edge and a front fold line, a central section defined by said front fold line and a rear fold line, and a rear section defined by said rear fold line and a rear edge; said front and rear sections being folded onto the top face of said central section about said front and rear fold lines, respectively, with said front and rear edges facing one another; a withdrawal cord fastened longitudinally around said folded cushion and dividing said cushion therewith into two lateral sections; the two lateral sections being folded toward each other about said withdrawal cord with the folded front and rear sections facing each other; said absorbent body further provided with a reinforcing strip of material sandwiched between the absorbent material and the liquid permeable cover at the area of the cushion underlying the withdrawal cord.

References Cited (Backward Citations)

GB568042A Cited
US3051177A Cited
US3359981A Cited
US3856013A Cited
DE2146510A1 Cited
US3976075A Cited
US3971379A Cited
US4217900A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1984-10-12 1985-04-13 1985-10-13 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1988-10-12 1989-04-13 1989-10-13 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1992-10-12 1993-04-13 1993-10-13 $7700.00 Window Closed / Lapsed

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