US2732586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinning of
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:22
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
IN AN APPARATUS FOR THE SPINNING OF FILAMENTARY MATERIALS, THE COMBINATION WITH A SPIN POT, OF A SPINNING HEAD INCLUDING A SPINNERETTE HAVING AT LEAST 300 FILAMENTFORMING APERTURES THEREIN, MEANS FOR INTRODUCING A COHERENT MASS OF LIQUID COAGULATING MEDIUM INTO SAID SPIN POT, MEANS FOR INTRODUCING A SPINNING DOPE INTO THE SPINNING HEAD WHEREBY IT WILL FLOW THROUGH THE FILAMENTFORMING APERTURES IN THE SPINNERETTE INTO THE COAGULATING MEDIUM TO FORM A BUNDLE OF FILAMENTS, AND A SPIN TUBE THROUGH WHICH THE COAGULATING MEDIUM AND THE BUNDLE OF FILAMENTS PASS UPWARDLY FROM THE SPIN POT, THE INTERNAL DIAMETER OF SAID SPIN TUBE EXCEEDING THE DIAMETER OF THE BUNDLE OF FILAMENTS BY AT MOST ABOUT 1 INCH AT ANY POINT ALONG ITS LENGTH.
Claim 2
Dependent Claim
121 words
IN AN APPARATUS FOR THE SPINNING OF FILAMENTARY MATERIALS, THE COMBINATION WITH A SPIN POT, OF A SPINNING HEAD INCLUDING A SPINNERETTE HAVING AT LEAST 300 FILAMENTFORMING APERTURES THEREIN, MEANS FOR INTRODUCING A COHERENT MASS OF LIQUID COAGULATING MEDIUM INTO SAID SPIN POT, MEANS FOR INTRODUCING A SPINNING DOPE INTO THE SPINNING HEAD WHEREBY IT WILL FLOW THROUGH THE FILAMENTFORMING APERTURES IN THE SPINNERETTE INTO THE COAGULATING MEDIUM TO FORM A BUNDLE OF FILAMENTS, AND A SPIN TUBE THROUGH WHICH THE COAGULATING MEDIUM AND THE BUNDLE OF FILAMENTS PASS UPWARDLY FROM THE SPIN POT, THE INTERNAL DIAMETER OF SAID SPIN TUBE EXCEEDING THE DIAMETER OF THE BUNDLE OF FILAMENTS BY AT MOST ABOUT 1 INCH AT ANY POINT ALONG ITS LENGTH.
References Cited (Backward Citations)
US827434A
Cited
US1517627A
Cited
US2046575A
Cited
US2046576A
Cited
US2027419A
Cited
US1997930A
Cited
US2425782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |