Patent US3608148A successfully refreshed from Google Patents.
US3608148A
Expired / Lapsed
US
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Apparatus for spinning a miltifilament yarn
Assignee: Akzona Inc
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Filing: 1967-02-20
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Granted: 1971-09-28
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Expires: 1987-02-20
Abstract
Abstract IMPROVED APPARATUS FOR PRODUCING LAYERED MULTI-COMPONENT FILAMENTS COMPRISING SPINNERET MEANS, MIXING MEANS IMMEDIATELY UPSTREAM OF SAID SPINNERET MEANS, FEED MEANS FOR INTRODUCING SPINNING MASSES THROUGH FILTRATION MEANS INTO SAID MIXING MEANS, SAID MIXING MEANS DIVIDING AND INCREASING THE COMPONENT LAYERS PRIOR TO TERMINATING INTO THE EXTRUSION ORIFICES OF SAID SPINNERET MEANS.
Inventors
- 👤 Robert Sluijters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:41
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/06; D01D1/065; B; B01; B01F; B01F25/00; B01F25/40; B01F25/42; B01F25/421; B01F25/422; D01D5/00; D01D5/28; Y; Y10; Y10S; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |