US3916447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low cost, absorbent, clinging, aqueous liquid barrier protective covering
Assignee: Kimberly Clark Corp
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Filing: 1972-04-24
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Granted: 1975-11-04
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Expires: 1992-04-24
Abstract
Abstract A protective covering is disclosed having at least one layer of synthetic polymeric microfibers bonded to at least one other layer of cellulosic fibers. The exposed microfibers exhibit a tendency to cling to other natural fibers found in clothing or other webs, while the exposed cellulosic fibers present an absorbent surface. The combination is a soft, flexible, aqeuous liquid-barrier web useful as a dinner napkin, bib, furniture cover, or the like.
Inventors
- 👤 Lenore E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:50
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4382; D04H1/43838; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; A; A41; A41B; A41B13/00; A41B13/10; A47; A47C; A47C31/00; A47C31/10; A47C31/11; A47C31/113; A47G; A47G11/00; A47G11/001; A47G11/002; D04H1/425; D04H1/4282; D04H1/4291; D04H1/4374; A41B2400/00; A41B2400/52; B32B2262/00; B32B2262/06; B32B2262/062; B32B2555/00; B32B2555/02; B32B2601/00; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786; Y10T428/3179; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T442/00; Y10T442/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
128 words
IN COMBINATION, A FABRIC GARMENT CONTAINING NATURAL FIBERS AND A PROTECTIVE COVER ATTACHED TO SAID FABRIC GARMENT, THE IMPROVEMENT WHEREIN SAID PROTECTIVE COVER IS OF INTERBONDED, MULTI-LAYER CONSTRUCTION HAVING AS A FIRST SURFACE IN CONTACT WITH SAID GARMENT, A LAYER SUBSTANTIALLY COMPOSED OF GENERALLY DISCONTINUOUS, THERMOPLASTIC, HYDROPHOBIC MICROFIBERS HAVING AN AVERAGE FIBER DIAMETER OF FROM ABOUT 2 MICRONS TO ABOUT 6 MICRONS AND A BASIS WEIGHT IN THE RANGE OF FROM 0.5 TO 30 GRAMS PER SQUARE METER AND, AS AN EXPOSED SECOND SURFACE, A LAYER HAVING A BASIS WEIGHT OF FROM ABOUT 10 TO 60 GRAMS PER SQUARE METER SUBSTANTIALLY COMPOSED OF ABSORBENT CELLULOSIC FIBERS, SAID PROTECTIVE COVER HAVING AQUEOUS BARRIER PROPERTIES AND A TENDANCY TO CLING TO SAID FABRIC GARMENT AND RESIST DISPLACEMENT DURING NORMAL USE.
Claim 2
Dependent Claim
128 words
IN COMBINATION, A FABRIC GARMENT CONTAINING NATURAL FIBERS AND A PROTECTIVE COVER ATTACHED TO SAID FABRIC GARMENT, THE IMPROVEMENT WHEREIN SAID PROTECTIVE COVER IS OF INTERBONDED, MULTI-LAYER CONSTRUCTION HAVING AS A FIRST SURFACE IN CONTACT WITH SAID GARMENT, A LAYER SUBSTANTIALLY COMPOSED OF GENERALLY DISCONTINUOUS, THERMOPLASTIC, HYDROPHOBIC MICROFIBERS HAVING AN AVERAGE FIBER DIAMETER OF FROM ABOUT 2 MICRONS TO ABOUT 6 MICRONS AND A BASIS WEIGHT IN THE RANGE OF FROM 0.5 TO 30 GRAMS PER SQUARE METER AND, AS AN EXPOSED SECOND SURFACE, A LAYER HAVING A BASIS WEIGHT OF FROM ABOUT 10 TO 60 GRAMS PER SQUARE METER SUBSTANTIALLY COMPOSED OF ABSORBENT CELLULOSIC FIBERS, SAID PROTECTIVE COVER HAVING AQUEOUS BARRIER PROPERTIES AND A TENDANCY TO CLING TO SAID FABRIC GARMENT AND RESIST DISPLACEMENT DURING NORMAL USE.
Claim 3
Dependent Claim
133 words
IN COMBINATION, AN ARTICLE OF FURNITURE HAVING A FABRIC OUTER MATERIAL CONTAINING NATURAL FIBERS AND A PROTECTIVE COVER ATTACHED TO SAID FABRIC, THE IMPROVEMENT WHEREIN SAID PROTECTIVE COVER IS OF INTERBONDED, MULTI-LAYER CONSTRUCTION HAVING AS A FIRST SURFACE IN CONTACT WITH SAID FABRIC, A LAYER SUBSTANTIALLY COMPOSED OF GENERALLY DISCONTINUOUS, THERMOPLASTIC, HYDROPHOBIC MICROFIBERS HAVING AN AVERAGE FIBER DIAMETER OF FROM ABOUT 2 MICRONS TO ABOUT 6 MICRONS AND A BASIS WEIGHT IN THE RANGE OF FROM 0.5 TO 30 GRAMS PER SQUARE METER AND, AS AN EXPOSED SECOND SURFACE, A LAYER HAVING A BASIS WEIGHT OF FROM ABOUT 10 TO 60 GRAMS PER SQUARE METER SUBSTANTIALLY COMPOSED OF ABSORBENT CELLULOSIC FIBERS, SAID PROTECTIVE COVER HAVING AQUEOUS LIQUID BARRIER PROPERTIES AND A TENDANCY TO CLING TO SAID FABRIC AND RESIST DISPLACEMENT DURING NORMAL USE.
Claim 4
Dependent Claim
133 words
IN COMBINATION, AN ARTICLE OF FURNITURE HAVING A FABRIC OUTER MATERIAL CONTAINING NATURAL FIBERS AND A PROTECTIVE COVER ATTACHED TO SAID FABRIC, THE IMPROVEMENT WHEREIN SAID PROTECTIVE COVER IS OF INTERBONDED, MULTI-LAYER CONSTRUCTION HAVING AS A FIRST SURFACE IN CONTACT WITH SAID FABRIC, A LAYER SUBSTANTIALLY COMPOSED OF GENERALLY DISCONTINUOUS, THERMOPLASTIC, HYDROPHOBIC MICROFIBERS HAVING AN AVERAGE FIBER DIAMETER OF FROM ABOUT 2 MICRONS TO ABOUT 6 MICRONS AND A BASIS WEIGHT IN THE RANGE OF FROM 0.5 TO 30 GRAMS PER SQUARE METER AND, AS AN EXPOSED SECOND SURFACE, A LAYER HAVING A BASIS WEIGHT OF FROM ABOUT 10 TO 60 GRAMS PER SQUARE METER SUBSTANTIALLY COMPOSED OF ABSORBENT CELLULOSIC FIBERS, SAID PROTECTIVE COVER HAVING AQUEOUS LIQUID BARRIER PROPERTIES AND A TENDANCY TO CLING TO SAID FABRIC AND RESIST DISPLACEMENT DURING NORMAL USE.
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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) | 1978-11-03 | 1979-05-05 | 1979-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-03 | 1983-05-05 | 1983-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-03 | 1987-05-05 | 1987-11-04 | $7700.00 | Window Closed / Lapsed |