US4813950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanitary menses panty
Assignee: Individual
•
Filing: 1986-09-15
•
Granted: 1989-03-21
•
Expires: 2006-09-15
Abstract
Abstract A washable reuseable sanitary panty designed to be worn during menses, normally occurring in non-pregnant women about every four weeks, from menarche to menopause. The sanitary panty is intended to be worn with a tampon or sanitary napkin to prevent leakage and soiling of outer garments. The panty comprises a highly elastic woven or knit fiber outer covering configured in the shape of a panty and a contiguous non-woven plastic film inner layer extending through the crotch, the inner layer being liquid water impermeable/water vapor permeable and of at least equal non-directional elasticity as the outer covering. In the preferred embodiment the panty is constructed of a spandex polyurethane fiber outer covering and a soft smooth microporous plastic film inner layer sewn to the outer layer. Both the outer and inner layer as well as the stitching are substantially unaffected by repeated washing and heated drying without the need for special care.
Inventors
- 👤 Wilma J. Branch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:20
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/45; A61F13/49; A61F13/49003; A61F13/49006
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
124 words
A substantially fluid non-absorbent repeatedly washable undergarment having a waist opening and leg openings comprising a highly elastic fiber outer covering extending over substantially the entire undergarment and a contiguous soft non-fiber microporous polyurethane film inner layer less than about 0.002 inches in thickness extending through the crotch and seat area of the undergarment, said non-fiber film being liquid water impermeable and water vapor permeable and of at least equal non-directional elasticity to the outer covering, said non-fiber film inner layer being stitched about the periphery thereof to the fiber outer covering to provide a permanent attachment, whereby the stitching, outer layer and inner layer are substantially unaffected by body fluids, water, permanent staining and heat thereby providing a repeatably washable and reuseable undergarment.
Claim 2
Dependent Claim
124 words
A substantially fluid non-absorbent repeatedly washable undergarment having a waist opening and leg openings comprising a highly elastic fiber outer covering extending over substantially the entire undergarment and a contiguous soft non-fiber microporous polyurethane film inner layer less than about 0.002 inches in thickness extending through the crotch and seat area of the undergarment, said non-fiber film being liquid water impermeable and water vapor permeable and of at least equal non-directional elasticity to the outer covering, said non-fiber film inner layer being stitched about the periphery thereof to the fiber outer covering to provide a permanent attachment, whereby the stitching, outer layer and inner layer are substantially unaffected by body fluids, water, permanent staining and heat thereby providing a repeatably washable and reuseable undergarment.
Claim 3
Dependent Claim
31 words
The undergarment of claim 1 wherein the waist and leg openings are trimmed with elastic bands, the leg bands being concealed between the film inner layer and the outer covering layer.
Claim 4
Dependent Claim
127 words
A repeatably washable undergarment having a waist opening and leg openings comprising a highly elastic fiber outer covering and a microporous polyurethane film inner layer contiguous thereto extending at least through the crotch and seat area of the undergarment, said film being less than about 0.002 inches in thickness, said film being liquid impermeable and vapor permeable, soft, non-fibrous and smooth with an elasticity substantially equal to or in in excess of the elasticity of the fiber outer covering, and said film inner layer being stitched about the periphery thereof to the fiber outer covering to provide a permanent attachment, whereby the stitching outer layer and inner layer are substantially unaffected by body fluids, water, permanent staining and heat thereby providing a repeatably washable and reuseable undergarment.
Claim 5
Dependent Claim
127 words
A repeatably washable undergarment having a waist opening and leg openings comprising a highly elastic fiber outer covering and a microporous polyurethane film inner layer contiguous thereto extending at least through the crotch and seat area of the undergarment, said film being less than about 0.002 inches in thickness, said film being liquid impermeable and vapor permeable, soft, non-fibrous and smooth with an elasticity substantially equal to or in in excess of the elasticity of the fiber outer covering, and said film inner layer being stitched about the periphery thereof to the fiber outer covering to provide a permanent attachment, whereby the stitching outer layer and inner layer are substantially unaffected by body fluids, water, permanent staining and heat thereby providing a repeatably washable and reuseable undergarment.
Claim 6
Dependent Claim
20 words
The undergarment of claim 3 including a front panel of less elasticity than the balance of the fiber outer covering.
Claim 7
Dependent Claim
41 words
The undergarment of claim 3 wherein the waist and leg openings are trimmed with elastic bands, the leg bands being concealed between the plastic film inner layer and the fiber outer covering about at least a portion of each leg opening.
Claim 8
Dependent Claim
15 words
The undergarment of claim 3 wherein the fiber outer covering layer is a polyurethane fiber.
Claim 9
Dependent Claim
15 words
The undergarment of claim 3 wherein the fiber outer covering layer is a polyolefin fiber.
Claim 10
Dependent Claim
15 words
The undergarment of claim 3 wherein the fiber outer covering layer is a woven tricot.
Claim 11
Dependent Claim
15 words
The undergarment of claim 3 wherein the fiber outer covering layer is a cotton fiber.
Claim 12
Dependent Claim
170 words
A repeatably washable undergarment having a waist opening and leg openings comprising a highly elastic fiber outer covering, a front support panel of substantially less elasticity than the elastic fiber outer covering and attached to the elastic fiber outer covering, said front support panel extending generally from above the leg openings and below the waist opening across the front of the undergarment, and a microporous polyurethane film inner layer less than about 0.002 inches in thickness contiguous to the outer covering extending at least through the crotch and seat area of the undergarment, said film being liquid impermeable and vapor premeable, soft, non-fibrous and smooth with an elasticity substantially equal to or in excess of the elasticity of the fiber outer covering, and said film inner layer being stitched about the periphery thereof to the fiber outer covering to provide a permanent attachment, whereby the stitching, outer layer and inner layer are substantially unaffected by body fluids, water, permanent staining and heat thereby providing a repeatable washable and reuseable undergarment.
Claim 13
Dependent Claim
170 words
A repeatably washable undergarment having a waist opening and leg openings comprising a highly elastic fiber outer covering, a front support panel of substantially less elasticity than the elastic fiber outer covering and attached to the elastic fiber outer covering, said front support panel extending generally from above the leg openings and below the waist opening across the front of the undergarment, and a microporous polyurethane film inner layer less than about 0.002 inches in thickness contiguous to the outer covering extending at least through the crotch and seat area of the undergarment, said film being liquid impermeable and vapor premeable, soft, non-fibrous and smooth with an elasticity substantially equal to or in excess of the elasticity of the fiber outer covering, and said film inner layer being stitched about the periphery thereof to the fiber outer covering to provide a permanent attachment, whereby the stitching, outer layer and inner layer are substantially unaffected by body fluids, water, permanent staining and heat thereby providing a repeatable washable and reuseable undergarment.
Claim 14
Dependent Claim
28 words
The undergarment of claim 10 wherein the front support panel extends from one side of the undergarment to the other side and is stitched to the outer covering.
Claim 15
Dependent Claim
41 words
The undergarment of claim 10 wherein the waist and leg openings are trimmed with elastic bands, the leg bands being concealed between the plastic film inner layer and the fiber outer covering about at least a portion of each leg opening.
Claim 16
Dependent Claim
15 words
The undergarment of claim 10 wherein the fiber outer covering layer is a polyurethane fiber.
References Cited (Backward Citations)
DE127502C
Cited
US2102323A
Cited
US2636494A
Cited
US2660173A
Cited
US2706389A
Cited
US3595732A
Cited
US3489149A
Cited
US3613686A
Cited
US4425128A
Cited
US4347844A
Cited
US4338371A
Cited
US4613544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-20 | 1992-09-19 | 1993-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-20 | 1996-09-19 | 1997-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-20 | 2000-09-19 | 2001-03-21 | $7700.00 | Window Closed / Lapsed |