Patent US3392219A successfully refreshed from Google Patents.
US3392219A
Expired / Lapsed
US
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Process for imparting creases
Assignee: Burlington Industries Inc
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Filing: 1966-03-03
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Granted: 1968-07-09
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Expires: 1986-03-03
Abstract
No abstract record available.
Inventors
- 👤 Vernon C Smith
- 👤 Jr Everett H Hinton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:03
CPC Classifications
D; D06; D06F; D06F71/00; D06F71/32; D06F71/34; B; B65; B65H; B65H45/00; B65H45/02; B65H45/06; B65H45/10; B65H45/101; D06M; D06M10/00; D06M10/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF IMPARTING A PERMANENT CREASE TO A TEXTILE FABRIC COMPRISING THERMOPLASTIC FIBERS WHICH COMPRISES FOLDING SAID FABRIC TO FORM A CREASE AND SUBJECTING THE THUS FOLDED MATERIAL TO SONIC VIBRATIONS HAVING A FREQUENCY IN THE RANGE OF 20-40 KILOCYCLES PER SECOND WHEREBY SAID CREASE IS MADE PERMANENT, THE VIBRATION BEING APPLIED AT A POWER LEVEL AND FOR A DURATION OF TIME SUFFICIENT TO CAUSE HEATING OF THE MATERIAL WITHOUT FUSING AND WELDING OF THE SUPERPOSED LAYERS.
Claim 2
Independent Claim
78 words
A METHOD OF IMPARTING A PERMANENT CREASE TO A TEXTILE FABRIC COMPRISING THERMOPLASTIC FIBERS WHICH COMPRISES FOLDING SAID FABRIC TO FORM A CREASE AND SUBJECTING THE THUS FOLDED MATERIAL TO SONIC VIBRATIONS HAVING A FREQUENCY IN THE RANGE OF 20-40 KILOCYCLES PER SECOND WHEREBY SAID CREASE IS MADE PERMANENT, THE VIBRATION BEING APPLIED AT A POWER LEVEL AND FOR A DURATION OF TIME SUFFICIENT TO CAUSE HEATING OF THE MATERIAL WITHOUT FUSING AND WELDING OF THE SUPERPOSED LAYERS.
References Cited (Backward Citations)
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US2832747A
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US2892217A
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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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |