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US4333465A
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US
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Hygienic sanitary towel
Assignee: Individual
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Filing: 1979-12-05
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Granted: 1982-06-08
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Expires: 1999-12-05
Abstract
Abstract A sanitary towel for absorbing body fluids composed of an absorptive hydrophilic fiber filling having a cover, the cover being composed of a liquid-impermeable composite material and having a defined liquid-permeable zone. The core of the filling material contains an insert having highly absorptive polymers therein and being covered with a liquid-permeable woven carrier material, fleece or tissue. Such towels are easy to manufacture, highly absorptive and possess good tactile properties.
Inventors
- 👤 Georg Wiegner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:45
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/512; A61F13/01; A61F13/15577; A61F13/513; A61F13/51305; A61F13/51394; A61F13/53; A61F13/534; A61F13/537; A61F13/56; A61F13/58; A61F13/45; A61F13/49; A61F2013/49068; A61F2013/49076; A61F2013/51186; A61F2013/5128; A61F2013/530131; A61F2013/530437; A61F2013/530445; A61F2013/582
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
Hygienic sanitary towel for absorbing body fluid from a fluid opening of the body, consisting of an absorptive filling of hydrophilic fiber material with at least one cover, characterized by the fact that the outer cover (5) consists of a liquid-impermeable composite material and has a defined liquidpermeable absorptive zone (1) at the side facing the fluid opening and contains in the core of the filling an insert (8) in which there are highly absorptive polymers and consists on the outside of a liquid-permeable carrier material (4) of woven material, fleece or tissue and, on the inside, with the exception of the defined absorption zone (1), of a liquid-impermeable layer (6) and wherein insert (10) in the core consists of tissue paper, 8 which is folded once or several times and on which the highly absorptive polymers are applied before the paper is folded.
Claim 2
Dependent Claim
144 words
Hygienic sanitary towel for absorbing body fluid from a fluid opening of the body, consisting of an absorptive filling of hydrophilic fiber material with at least one cover, characterized by the fact that the outer cover (5) consists of a liquid-impermeable composite material and has a defined liquidpermeable absorptive zone (1) at the side facing the fluid opening and contains in the core of the filling an insert (8) in which there are highly absorptive polymers and consists on the outside of a liquid-permeable carrier material (4) of woven material, fleece or tissue and, on the inside, with the exception of the defined absorption zone (1), of a liquid-impermeable layer (6) and wherein insert (10) in the core consists of tissue paper, 8 which is folded once or several times and on which the highly absorptive polymers are applied before the paper is folded.
Claim 3
Dependent Claim
152 words
Hygienic sanitary towel for absorbing body fluid from a fluid opening of the body, consisting of an absorptive filling of hydrophilic fiber material with at least one cover, characterized by the fact that the outer cover (5) consists of a liquid-impermeable composite material and has a defined liquid-permeable absorptive zone (1) at the side facing the fluid opening and contains in the core of the filling an insert (8) in which there are highly absorptive polymers and consists on the outside of a liquid-permeable carrier material (4) of woven material, fleece or tissue and, on the inside, with the exception of the defined absorption zone (1), of a liquid-impermeable layer (6) and wherein insert (10) consists of a tissue tape (8) which is folded once or several times, is calendered with a waffle pattern and constains the highly absorptive polymers (9) stored in granulate form in a large number of small pockets.
Claim 4
Dependent Claim
152 words
Hygienic sanitary towel for absorbing body fluid from a fluid opening of the body, consisting of an absorptive filling of hydrophilic fiber material with at least one cover, characterized by the fact that the outer cover (5) consists of a liquid-impermeable composite material and has a defined liquid-permeable absorptive zone (1) at the side facing the fluid opening and contains in the core of the filling an insert (8) in which there are highly absorptive polymers and consists on the outside of a liquid-permeable carrier material (4) of woven material, fleece or tissue and, on the inside, with the exception of the defined absorption zone (1), of a liquid-impermeable layer (6) and wherein insert (10) consists of a tissue tape (8) which is folded once or several times, is calendered with a waffle pattern and constains the highly absorptive polymers (9) stored in granulate form in a large number of small pockets.
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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) | 1985-06-07 | 1985-12-07 | 1986-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-07 | 1989-12-07 | 1990-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-07 | 1993-12-07 | 1994-06-08 | $7700.00 | Window Closed / Lapsed |