US3094374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry spinning process for preparing coalesced spandex filaments
Assignee: EIDP Inc
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Filing: 1961-07-11
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Granted: 1963-06-18
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Expires: 1981-07-11
Abstract
No abstract record available.
Inventors
- 👤 Perry M Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:12
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/04; D01F; D01F6/00; D01F6/58; D01F6/70; Y; Y10; Y10S; Y10S260/00; Y10S260/41; Y10S264/00; Y10S264/75
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A PROCESS FOR PREPARING A COALESCED MULTIFILAMENT WHICH COMPRISES EXTRUDING A SOLVENT-CONTAINING SOLUTION OF A SPANDEX POLYMER THROUGH A SPINNERET HAVING A PLURALITY OF ORIFICES THEREIN INTO A SPINNING CELL TO FORM A PLURALITY OF SEPARATE FILAMENTS, FORWARDING SAID FILAMENTS IN AN UNSUPPORTED FASHION THROUGH SAID CELL WHILE SIMULTANEOUSLY INTRODUCING INTO SAID CELL A GASEOUS EVAPORATIVE MEDIUM, WITHDRAWING SAID FILAMENTS FROM SAID CELL THROUGH AN OUTLET REMOTE FROM SAID ORIFICES AND THENCE THROUGH A
Claim 2
Dependent Claim
74 words
A PROCESS FOR PREPARING A COALESCED MULTIFILAMENT WHICH COMPRISES EXTRUDING A SOLVENT-CONTAINING SOLUTION OF A SPANDEX POLYMER THROUGH A SPINNERET HAVING A PLURALITY OF ORIFICES THEREIN INTO A SPINNING CELL TO FORM A PLURALITY OF SEPARATE FILAMENTS, FORWARDING SAID FILAMENTS IN AN UNSUPPORTED FASHION THROUGH SAID CELL WHILE SIMULTANEOUSLY INTRODUCING INTO SAID CELL A GASEOUS EVAPORATIVE MEDIUM, WITHDRAWING SAID FILAMENTS FROM SAID CELL THROUGH AN OUTLET REMOTE FROM SAID ORIFICES AND THENCE THROUGH A
References Cited (Backward Citations)
US2352861A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |