US3176643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a napped fabric
Assignee: Pepperell Manufacturing Co
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Filing: 1963-06-26
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Granted: 1965-04-06
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Expires: 1983-06-26
Abstract
No abstract record available.
Inventors
- 👤 Francis T Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:06
CPC Classifications
D; D05; D05C; D05C17/00; D05C17/02; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/2395
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
THE METHOD OF PREPARING A NAPPED FABRIC, USEFUL AS BLANKET CLOTH, WHICH COMPRISES AS STEPS: PROVIDING A BASE FABRIC BY ASSEMBLING AN OPEN MESH TEXTILE MATERIAL, WHOSE CONSTITUENT YARNS ARE PREDOMINANTLY OF HIGH TENACITY NYLON, WITH A SUBSTANTIALLY CONTINUOUS, NON-WOVEN PLY WHICH IS SOFT, FLEXIBLE, PERVIOUS TO AIR AND OF AN INSULATING CHARACTER; UNITING SAID TEXTILE MATERIAL AND SAID NON-WOVEN PLY; SUBJECTING THE BASE FABRIC, SO PROVIDED, TO A TUFTING OPERATION, WHEREBY TUFTING YARN LOOPS ARE FORMED AT ONE FACE, AT LEAST, OF THE BASE FABRIC; AND NAPPING THE TUFTING LOOPS, THE SUBSTANTIALLY CONTINUOUS PLY BEING OF FORMED POLYURETHANE, SAID METHOD INCLUDING THE FURTHER STEP OF SATURATING THE POLYURETHANE PLY WITH A WATER-SOLUBLE STIFFENING AGENT BEFORE INTRODUCING THE TUFTING YARNS.
Claim 2
Independent Claim
120 words
THE METHOD OF PREPARING A NAPPED FABRIC, USEFUL AS BLANKET CLOTH, WHICH COMPRISES AS STEPS: PROVIDING A BASE FABRIC BY ASSEMBLING AN OPEN MESH TEXTILE MATERIAL, WHOSE CONSTITUENT YARNS ARE PREDOMINANTLY OF HIGH TENACITY NYLON, WITH A SUBSTANTIALLY CONTINUOUS, NON-WOVEN PLY WHICH IS SOFT, FLEXIBLE, PERVIOUS TO AIR AND OF AN INSULATING CHARACTER; UNITING SAID TEXTILE MATERIAL AND SAID NON-WOVEN PLY; SUBJECTING THE BASE FABRIC, SO PROVIDED, TO A TUFTING OPERATION, WHEREBY TUFTING YARN LOOPS ARE FORMED AT ONE FACE, AT LEAST, OF THE BASE FABRIC; AND NAPPING THE TUFTING LOOPS, THE SUBSTANTIALLY CONTINUOUS PLY BEING OF FORMED POLYURETHANE, SAID METHOD INCLUDING THE FURTHER STEP OF SATURATING THE POLYURETHANE PLY WITH A WATER-SOLUBLE STIFFENING AGENT BEFORE INTRODUCING THE TUFTING YARNS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |