US3558757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
False twisting
Assignee: Celanese Corp
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Filing: 1969-04-29
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Granted: 1971-01-26
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Expires: 1989-04-29
Abstract
Abstract THE PROCESS INCLUDES EXTRUDING A LIQUID FIBER-FORMING MATERIAL THROUGH A SPINNERETTE INTO A SPINNING CABINET CONTAINING A GASEOUS MEDIUM TO FORM A MULTIPLICITY OF TACKY FILAMENTS. THE FILAMENTS ARE WITHDRAWN FROM THE SPINNING CABINET THROUGH AN OUTLET REMOTE FROM THE SPINNERETTE. THE FILAMENTS ARE THEN PASSED IN GUIDING CONTACT WITH A GUIDE MEANS, PERFERABLE MOVEABLE, SO POSITIONED THAT THE DIRECTION OF MOVEMENT OF THE FILAMENTS IS CHANGED FROM THE ORIGINAL LINE OF MOVEMENT TO A PATH OF TRAVEL LYING SUBSTANTIALLY IN A PLANE INTERSECTING THE ORIGINAL LINE OF MOVEMENT AT A SMALL ANGLE.
Inventors
- 👤 Russell Owens Denyes
- 👤 Joseph Hermano Santangelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:55
CPC Classifications
D; D01; D01H; D01H7/00; D01H7/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |