US2511699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for spinning viscose
Assignee: Comptoir des Textiles Artificiels SA
•
Filing: 1948-11-04
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Granted: 1950-06-13
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Expires: 1968-11-04
Abstract
No abstract record available.
Inventors
- 👤 Drisch Nicolas
- 👤 Priou Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:07
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06; D01F; D01F2/00; D01F2/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE METHOD OF SPINNING VISCOSE FOR THE MANUFACTURE OF RAVON AND THE LIKE WHICH COMPRISES EJECTING THE VISCOSE FROM A SPINNERET INTO A COAGULATING BATH AND DRAWING THE FILAMENTS IN A STRAIGHT LINE THROUGH A STRAIGHT CYLINDRICAL OPEN-ENDED TUBE THE SMALL DIAMETER IMMERSED AT BOTH ENDS IN SAID BATH AND CENTRED WITH RESPECT TO SAID SPINNERET, TO KEEP THE FILAMENTS OUT OF CONTACT WITH THE INNER WALL OF THE TUBE, AND INDUCING A FLOW OF THE BATH THROUGH SAID TUBE SOLELY BY THE AXIAL MOTION OF THE FILAMENT BUNDLE THROUGH THE TUBE.
Claim 2
Independent Claim
92 words
THE METHOD OF SPINNING VISCOSE FOR THE MANUFACTURE OF RAVON AND THE LIKE WHICH COMPRISES EJECTING THE VISCOSE FROM A SPINNERET INTO A COAGULATING BATH AND DRAWING THE FILAMENTS IN A STRAIGHT LINE THROUGH A STRAIGHT CYLINDRICAL OPEN-ENDED TUBE THE SMALL DIAMETER IMMERSED AT BOTH ENDS IN SAID BATH AND CENTRED WITH RESPECT TO SAID SPINNERET, TO KEEP THE FILAMENTS OUT OF CONTACT WITH THE INNER WALL OF THE TUBE, AND INDUCING A FLOW OF THE BATH THROUGH SAID TUBE SOLELY BY THE AXIAL MOTION OF THE FILAMENT BUNDLE THROUGH THE TUBE.
References Cited (Backward Citations)
US2243116A
Cited
US2440057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-12 | 1953-12-12 | 1954-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-12 | 1957-12-12 | 1958-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-12 | 1961-12-12 | 1962-06-13 | $7700.00 | Window Closed / Lapsed |