US3939838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Article for treating menstrual fluid
Assignee: Unicharm Corp
•
Filing: 1974-08-20
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Granted: 1976-02-24
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Expires: 1994-08-20
Abstract
Abstract An article for treating menstrual fluid employs a cover member forming an enclosure, an absorbent layer positioned within the enclosure for absorbing the menstrual fluid, a water-proofing layer also positioned within the enclosure for preventing the menstrual fluid absorbed by the absorbent layer from permeating to the outside of the cover member and a deodorizer composition such as active carbon and the like located within the enclosure and having the function of absorbing and holding the menstrual fluid and simultaneously removing the odor released from the menstrual fluid.
Inventors
- 👤 Nobuakira Fujinami
- 👤 Tadashi Nagano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:37
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/84; A61F13/8405; A61L; A61L15/00; A61L15/16; A61L15/42; A61L15/46; A61F13/53; A61F13/534; A61F13/51; A61F2013/51002; A61F2013/51038; A61F2013/51042; A61F13/514; A61F13/51401; A61F2013/51409; A61F2013/53445; A61F2013/8408; A61F2013/842; A61L2300/00; A61L2300/10; A61L2300/102; A61L2300/108; A61L2300/60; A61L2300/606; A61L2300/608
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
154 words
An article for treating menstrual fluid comprising: a cover member forming an enclosure, said cover member being made of a porous non-woven sheet of cellulose fiber and artificial fiber; a cottony thin web attached to the inside of said enclosure; an absorbent layer means positioned within said enclosure and said web for absorbing the menstrual fluid; a first water-proofing layer means positioned under said absorbent layer means; a deodorizer means located within said enclosure and having the function of absorbing and holding the menstrual fluid and simultaneously removing the odor released from the menstrual fluid; and a second water-proofing layer means in contact with the cottony web and positioned under and around the sides of said first water-proofing layer, said absorbent layer and said deodorizer means; said first and second water-proofing layers defining means for preventing any menstrual fluid not absorbed by the absorbent layer from permeating to the outside of said cover member.
Claim 2
Dependent Claim
154 words
An article for treating menstrual fluid comprising: a cover member forming an enclosure, said cover member being made of a porous non-woven sheet of cellulose fiber and artificial fiber; a cottony thin web attached to the inside of said enclosure; an absorbent layer means positioned within said enclosure and said web for absorbing the menstrual fluid; a first water-proofing layer means positioned under said absorbent layer means; a deodorizer means located within said enclosure and having the function of absorbing and holding the menstrual fluid and simultaneously removing the odor released from the menstrual fluid; and a second water-proofing layer means in contact with the cottony web and positioned under and around the sides of said first water-proofing layer, said absorbent layer and said deodorizer means; said first and second water-proofing layers defining means for preventing any menstrual fluid not absorbed by the absorbent layer from permeating to the outside of said cover member.
Claim 3
Dependent Claim
37 words
An article for treating menstrual fluid as defined in claim 1 wherein said deodorizer means consists of at least one material selected from the group consisting of active carbon, active silica, active alumina and ion exchange resin.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |