Patent US3634573A successfully refreshed from Google Patents.
US3634573A
Expired / Lapsed
US
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Method for producing fibrous structures
Assignee: Veolia WTS Solutions USA Inc
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Filing: 1970-04-13
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Granted: 1972-01-11
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Expires: 1990-04-13
Abstract
Abstract METHOD FOR PRODUCING FILAMENTARY MATERIAL BY EXTRUDING SUBSTANTIALLY AXIALLY THROUGH AN ORIFICE COMPRISING CONTACTING THE EXTRUDED FILAMENT STREAM DOWNSTREAM OF THE ORIFICE AND PRIOR TO HARDENING WITH A PLURALITY OF HIGH VELOCITY GAS STREAMS, EACH MOVING IN A DIRECTION HAVING A MAJOR COMPONENT IN THE DIRECTION OF EXTRUSION OF THE FILAMENT STREAM IN A SHALLOW ANGLE OF TANGENTIAL CONVERGENCE THEREWITH TO ATTENUATE THE FILAMENT STREAM.
Inventors
- 👤 William Sherwood Wagner
- 👤 Berkeley Heights
- 👤 John Drew Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:16
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/08; D01D5/098; D01D5/0985
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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |