US3570059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerette head filter
Assignee: Mott Corp
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Filing: 1969-07-24
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Granted: 1971-03-16
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Expires: 1989-07-24
Abstract
Abstract THE CENTRAL CAVITY OF A SPINNERETTE HEAD ASSEMBLY FOR THE EXTRUSION OF SYNTHETIC POLYMER FIBERS IS SUBSTANTIALLY FILLED WITH TUBULAR FILTERS CLOSED AT ONE END AND COMMUNICATING WITH EXTRUSION ORIFICES, THE FILTER AREA PRESENTED TO INFLOWING PLASTIC BEING AT LEAST TWICE THE CROSSSECTIONAL AREA OF THE CENTRAL CAVITY.
Inventors
- 👤 Lambert H Mott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:05
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/10; D01D1/106; B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/69; B29C48/03; B29C48/254; B29C48/2545
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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |