Patent US4391869A successfully refreshed from Google Patents.
US4391869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nonwoven fibrous product
Assignee: Johnson and Johnson Consumer Inc
•
Filing: 1980-10-06
•
Granted: 1983-07-05
•
Expires: 2000-10-06
Abstract
Abstract Nonwoven, air-laid fabrics formed predominantly of textile length, synthetic, resilient fibers of staple length, the fabric being resin-bonded and having a density less than about 0.06 gm/cc at 0.16 lb/sq. in. load and a weight less than 3 oz/sq. yd. The fabric is resin-bonded using a bonding solution providing less than 180% solution pickup and more than 15% dry solids add-on. The fabric is used as a facing or covering for disposable diapers, sanitary napkins, incontinent pads, tampons and the like.
Inventors
- 👤 John R. Cook
- 👤 William A. James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:02
CPC Classifications
A; A61; A61F; A61F13/00; A61F13/15; A61F13/51; A61F13/511; A61F13/513; A61F13/51121; A61F13/20; A61F13/2002; A61F13/202; A61F13/15577; A61F2013/15821; A61F13/53; A61F2013/530131; A61F2013/530182; A61F13/84; A61F2013/8488; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/24992; Y10T442/00; Y10T442/60; Y10T442/69
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
40 words
A low density, resin-bonded, nonwoven fabric consisting essentially of wet resilient, dry resilient, synthetic, staple fibers, the fabric having a density less than about 0.06 gm/cc at 0.16 lb/sq. in. load, and a weight less than about 3 oz/sq. yd.
Claim 2
Dependent Claim
40 words
A low density, resin-bonded, nonwoven fabric consisting essentially of wet resilient, dry resilient, synthetic, staple fibers, the fabric having a density less than about 0.06 gm/cc at 0.16 lb/sq. in. load, and a weight less than about 3 oz/sq. yd.
Claim 3
Dependent Claim
21 words
The fabric of claim 1 wherein the synthetic, staple fibers are polypropylene, polyethylene, polyester, nylon or acrylic fibers or mixtures thereof.
Claim 4
Dependent Claim
24 words
The fabric of claim 1 wherein the density is in the range from about 0.02 and about 0.05 gm/cc at 0.16 lb/sq. in. load.
Claim 5
Dependent Claim
17 words
The fabric of claim 3 wherein the density is about 0.02 gm/cc at 0.16 lb/sq. in. load.
Claim 6
Dependent Claim
13 words
The fabric of claim 1 wherein the synthetic, staple fibers are polyester fibers.
Claim 7
Dependent Claim
35 words
A low-density, resin-bonded, nonwoven fabric comprising polyester staple fibers, the fabric having a density from about 0.02 to about 0.05 gm/cc at 0.16 lb/sq. in. load and a weight less than about 3 oz/sq. yd.
Claim 8
Dependent Claim
35 words
A low-density, resin-bonded, nonwoven fabric comprising polyester staple fibers, the fabric having a density from about 0.02 to about 0.05 gm/cc at 0.16 lb/sq. in. load and a weight less than about 3 oz/sq. yd.
References Cited (Backward Citations)
US3515634A
Cited
US2982682A
Cited
US3007840A
Cited
USRE30061E
Cited
US3589956A
Cited
US3676245A
Cited
US3755036A
Cited
US4041203A
Cited
US4010752A
Cited
US4081582A
Cited
US4082886A
Cited
US4159355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |