US3030690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making papermaker's felt
Assignee: Appleton Mills
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Filing: 1960-07-20
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Granted: 1962-04-24
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Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Louis R Mizell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:34
CPC Classifications
D; D21; D21F; D21F1/00; D21F1/0027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A METHOD OF MAKING PAPERMAKER''S FELTS CONTAINING A SUBSTANTIAL PORTION OF CONTINUOUS FILAMENT SYNTHETIC HEAT RETRACTABLE YARNS COMPRISING MECHANICALLY INTERLOOPING AND SNARLING FILAMENTS OF CONTINUOUS MULTIPLE FILAMENT SYNTHETIC YARNS TO SUBSTANTIALLY INCREASE THE YARN DENIER AND BULK, AND WEAVING A FELT-LIKE FABRIC FROM SAID MECHANICALLY BULKED YARN, PLACING THE WOVEN FABRIC UNDER LONGITUDINAL TENSION, HEATING THE TENSIONED FABRIC TO ESTABLISH A TEMPERATURE IN THE FABRIC OF FROM ABOUT 212* F. TO ABOUT 400* F. TO PROVIDE THERMAL SHRINKAGE IN THE WIDTH OF THE FABRIC AND THEN HEAT SETTING THE FABRIC.
Claim 2
Independent Claim
90 words
A METHOD OF MAKING PAPERMAKER''S FELTS CONTAINING A SUBSTANTIAL PORTION OF CONTINUOUS FILAMENT SYNTHETIC HEAT RETRACTABLE YARNS COMPRISING MECHANICALLY INTERLOOPING AND SNARLING FILAMENTS OF CONTINUOUS MULTIPLE FILAMENT SYNTHETIC YARNS TO SUBSTANTIALLY INCREASE THE YARN DENIER AND BULK, AND WEAVING A FELT-LIKE FABRIC FROM SAID MECHANICALLY BULKED YARN, PLACING THE WOVEN FABRIC UNDER LONGITUDINAL TENSION, HEATING THE TENSIONED FABRIC TO ESTABLISH A TEMPERATURE IN THE FABRIC OF FROM ABOUT 212* F. TO ABOUT 400* F. TO PROVIDE THERMAL SHRINKAGE IN THE WIDTH OF THE FABRIC AND THEN HEAT SETTING THE FABRIC.
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) | 1965-04-23 | 1965-10-23 | 1966-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-23 | 1969-10-23 | 1970-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-23 | 1973-10-23 | 1974-04-24 | $7700.00 | Window Closed / Lapsed |