US3023075A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous material
Assignee: Acordis UK Ltd
•
Filing: 1957-11-14
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Granted: 1962-02-27
•
Expires: 1977-11-14
Abstract
No abstract record available.
Inventors
- 👤 Larman William Thomas
- 👤 Hawtin Selwyn George
- 👤 Downing John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/02; D04H3/07; D04H3/077; A; A24; A24D; A24D3/00; A24D3/02; A24D3/0229; A24D3/0237; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0445; D01D5/00; D01D5/06; D04H3/013; D04H3/08; D04H3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
PROCESS WHICH COMPRISES EXTRUDING A SOLUTION OF A FILAMENT-FORMING SUBSTANCE INTO A COAGULATING LIQUID THROUGH AT LEAST 200 ORIFICES DISTRIBUTED OVER SUBSTANTIALLY THE WHOLE OF A CIRCULAR AREA AND SPACED APART BY LESS THAN 2 MM. BETWEEN CENTRES, DRAWING THE MASS OF FILAMENTS SO FORMED THROUGH AND OUT OF THE COAGULATING LIQUID AT A TAKE-UP SPEED WHICH IS LESS THAN HALF THE EXTRUSION SPEED AND COMPRESSING SAID MASS INTO A CYLINDRICAL STRUCTURE OF PREDETERMINED CROSS-SECTION.
Claim 2
Dependent Claim
75 words
PROCESS WHICH COMPRISES EXTRUDING A SOLUTION OF A FILAMENT-FORMING SUBSTANCE INTO A COAGULATING LIQUID THROUGH AT LEAST 200 ORIFICES DISTRIBUTED OVER SUBSTANTIALLY THE WHOLE OF A CIRCULAR AREA AND SPACED APART BY LESS THAN 2 MM. BETWEEN CENTRES, DRAWING THE MASS OF FILAMENTS SO FORMED THROUGH AND OUT OF THE COAGULATING LIQUID AT A TAKE-UP SPEED WHICH IS LESS THAN HALF THE EXTRUSION SPEED AND COMPRESSING SAID MASS INTO A CYLINDRICAL STRUCTURE OF PREDETERMINED CROSS-SECTION.
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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) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |