US3717150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbent stretchable fabric
Assignee: Farah Manufacturing Co Inc
•
Filing: 1970-09-09
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Granted: 1973-02-20
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Expires: 1990-09-09
Abstract
Abstract An absorbent fabric, preferably used as a diaper, comprised of an absorbent shrinkable web encased in a warp knitted fabric of relatively non-shrinkable yarn. The fabric is substantially nonstretchable when made, but becomes stretchable after washing and drying. A method of making a stretchable fabric is also disclosed.
Inventors
- 👤 S Schwartz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:25
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/15577; A61F13/45; A61F13/49; A61F13/49003; A61F13/49006; A61F13/51; A61F13/515; A61F13/53; A61F13/539
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
61 words
An absorbent stretchable diaper comprising a layer of a hydrophilic material, at least one layer of a hydrophobic material, and substantially non-shrinkable yarn, the hydrophilic and hydrophobic layers being maintained in contact with each other by a series of interconnected loop chains of the yarn knitted through the layers to encase the layers in a warp knitted fabric of the yarn.
Claim 2
Dependent Claim
61 words
An absorbent stretchable diaper comprising a layer of a hydrophilic material, at least one layer of a hydrophobic material, and substantially non-shrinkable yarn, the hydrophilic and hydrophobic layers being maintained in contact with each other by a series of interconnected loop chains of the yarn knitted through the layers to encase the layers in a warp knitted fabric of the yarn.
Claim 3
Dependent Claim
22 words
An absorbent diaper as defined in claim 1 wherein the fabric has a border therearound to enclose the edges of the fabric.
Claim 4
Dependent Claim
15 words
An absorbent diaper as defined in claim 2 wherein the border is a hydrophobic material.
Claim 5
Dependent Claim
13 words
An absorbent diaper as defined in claim 1 wherein the yarn is hydrophobic.
Claim 6
Dependent Claim
13 words
An absorbent diaper as defined in claim 4 wherein the yarn is nylon.
Claim 7
Dependent Claim
14 words
An absorbent diaper as defined in claim 4 wherein the yarn is a polyester.
Claim 8
Dependent Claim
14 words
An absorbent diaper as defined in claim 4 wherein the yarn is an acrylic.
Claim 9
Dependent Claim
21 words
An absorbent diaper as defined in claim 1 wherein the hydrophilic layer is smaller in surface area than the hydrophobic layer.
Claim 10
Dependent Claim
16 words
An absorbent diaper as defined in claim 1 wherein the hydrophobic material is a non-woven fabric.
Claim 11
Dependent Claim
17 words
An absorbent diaper as defined in claim 1 wherein the hydrophilic material is a web of rayon.
Claim 12
Dependent Claim
18 words
An absorbent diaper as defined in claim 10 wherein the hydrophilic material contains at least 1% polyvinylchloride fibers.
Claim 13
Dependent Claim
14 words
An absorbent diaper as defined in claim 1 wherein the hydrophobic material is nylon.
Claim 14
Dependent Claim
15 words
An absorbent diaper as defined in claim 1 wherein the hydrophobic material is a polyester.
Claim 15
Dependent Claim
15 words
An absorbent diaper as defined in claim 1 wherein the hydrophobic material is an acrylic.
Claim 16
Dependent Claim
31 words
An absorbent diaper as defined in claim 1 wherein the hydrophilic layer and the yarn have the characteristics that the hydrophilic layer will shrink at least 10% more than the yarn.
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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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |