US2719073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt spinning process
Assignee: EIDP Inc
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Filing: 1951-11-30
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Granted: 1955-09-27
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Expires: 1971-11-30
Abstract
No abstract record available.
Inventors
- 👤 Earl H Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:30
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02; D01D4/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
IN THE PROCESS OF MELT SPINNING ARTIFICIAL FILAMENTS AND FIBERS BY EXTRUSION THROUGH A SPINNERET, THE STEPS WHICH COMPRISES MAINTAINING A LIQUID FILM OF POLYORGANO SILOXANS ON THE OUTER FACE OF THE SPINNERET DURING THE SPINNING OPERATION.
Claim 2
Dependent Claim
37 words
IN THE PROCESS OF MELT SPINNING ARTIFICIAL FILAMENTS AND FIBERS BY EXTRUSION THROUGH A SPINNERET, THE STEPS WHICH COMPRISES MAINTAINING A LIQUID FILM OF POLYORGANO SILOXANS ON THE OUTER FACE OF THE SPINNERET DURING THE SPINNING OPERATION.
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) | 1958-09-26 | 1959-03-28 | 1959-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-26 | 1963-03-28 | 1963-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-26 | 1967-03-28 | 1967-09-27 | $7700.00 | Window Closed / Lapsed |