Patent US2536093A successfully refreshed from Google Patents.
US2536093A
Expired / Lapsed
US
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Method for spinning artificial filaments
Assignee: Akzo Nobel UK PLC
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Filing: 1947-05-28
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Granted: 1951-01-02
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Expires: 1967-05-28
Abstract
No abstract record available.
Inventors
- 👤 James W Coleman
- 👤 James W Hall
- 👤 Howard D Merion
- 👤 Jr Sanford A Moss
- 👤 Pedlow John Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:46
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
THE METHOD OF PRODUCING ARTIFICIAL FILAMENTS COMPRISING CONTINUOUSLY EXTRUDING STREAMS OF FILAMENT-FORMING MATERIAL WITH THE CENTERS OF ADJACENT STREAMS SPACED BETWEEN 0.0005 AND 0.015 INCH APART INTO A LIQUID COAGULATING BATH WHEREIN THE STREAMS OF FILAMENT-FORMING MATERIAL PRODUCE BY-PRODUCTS IN THEIR VICINITY AS THEY ARE COAGULATED FO FORM A BUNDLE OF FILAMENTS, DRAWING THE FILAMENTS AS THEY ARE COAGULATED UPWARDLY IN A STRAIGHT FREE PATH THROUGH THE COAGULATING BATH A DISTANCE UP TO TWO INCHES AND THEN THROUGH SPACE TO A POSITION ABOVE THE BATH, REMOVING BY-PRODUCTS FROM THE COAGULATING BATH AS THEY ARE PRODUCED, BY FORMING BY-PRODUCTS CONTAINING COAGULATING LIQUID OF THE BATH IN THE VICINITY OF THE TRAVELING FILAMENT INTO A SMOOTH CONTINUOUS COLUMN OF LIQUID WEIGHTING UP TO 0.0025 GRAM PER INCH PER FILAMENT FLOWING ENTIRELY UNDER CONDITIONS OF VISCOUS FLOW FROM THE SURFACE OF THE BATH WITH AND AROUND THE FILAMEANS BUNDLE TO SAID POSITION ABOVE THE BATH, REMOVING BY-PRODUCTS CONTAINING LIQUID FROM THE FILAMENT BUNDLE AT SAID POSITION ABOVE THE BATH, COLLECTING THE LIQUID AS IT IS REMOVED FROM THE FILAMENT BUNDLE, DIRECTING THE REMOVED LIQUID AWAY FROM THE COAGULATING BATH, AND STRETCHING THE FILAMENT BUNDLE.
Claim 2
Independent Claim
191 words
THE METHOD OF PRODUCING ARTIFICIAL FILAMENTS COMPRISING CONTINUOUSLY EXTRUDING STREAMS OF FILAMENT-FORMING MATERIAL WITH THE CENTERS OF ADJACENT STREAMS SPACED BETWEEN 0.0005 AND 0.015 INCH APART INTO A LIQUID COAGULATING BATH WHEREIN THE STREAMS OF FILAMENT-FORMING MATERIAL PRODUCE BY-PRODUCTS IN THEIR VICINITY AS THEY ARE COAGULATED FO FORM A BUNDLE OF FILAMENTS, DRAWING THE FILAMENTS AS THEY ARE COAGULATED UPWARDLY IN A STRAIGHT FREE PATH THROUGH THE COAGULATING BATH A DISTANCE UP TO TWO INCHES AND THEN THROUGH SPACE TO A POSITION ABOVE THE BATH, REMOVING BY-PRODUCTS FROM THE COAGULATING BATH AS THEY ARE PRODUCED, BY FORMING BY-PRODUCTS CONTAINING COAGULATING LIQUID OF THE BATH IN THE VICINITY OF THE TRAVELING FILAMENT INTO A SMOOTH CONTINUOUS COLUMN OF LIQUID WEIGHTING UP TO 0.0025 GRAM PER INCH PER FILAMENT FLOWING ENTIRELY UNDER CONDITIONS OF VISCOUS FLOW FROM THE SURFACE OF THE BATH WITH AND AROUND THE FILAMEANS BUNDLE TO SAID POSITION ABOVE THE BATH, REMOVING BY-PRODUCTS CONTAINING LIQUID FROM THE FILAMENT BUNDLE AT SAID POSITION ABOVE THE BATH, COLLECTING THE LIQUID AS IT IS REMOVED FROM THE FILAMENT BUNDLE, DIRECTING THE REMOVED LIQUID AWAY FROM THE COAGULATING BATH, AND STRETCHING THE FILAMENT BUNDLE.
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) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |