Patent US3255487A successfully refreshed from Google Patents.
US3255487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinneret plate
Assignee: Akzona Inc
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Filing: 1964-04-09
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Granted: 1966-06-14
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Expires: 1984-04-09
Abstract
No abstract record available.
Inventors
- 👤 Nieuwenhuysen Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:37
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/24; Y; Y10; Y10S; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A SPINNERET PLATE FOR USE IN THE MELT SPINNING OF HOLLOW FILAMENTS FROM THERMOPLASTIC RESINS HAVING AT LEAST ONE SPINNING ORIFICE COMPRISING A PLURALITY OF ARCUATE SLOTS CIRCUMSCRIBING A SMALL PORTION OF THE PLATE, SAID SLOTS SEPARATED AT THEIR TERMINAL ENDS BY BRIDGES WHICH ARE RECESSED RELATIVE TO THE FACE OF THE SPINNERET PLATE AND MEANS FACILITATING AIR FLOW TO THE HOLLOW PORTION OF THE FILAMENT DURING SPINNING.
Claim 2
Dependent Claim
68 words
A SPINNERET PLATE FOR USE IN THE MELT SPINNING OF HOLLOW FILAMENTS FROM THERMOPLASTIC RESINS HAVING AT LEAST ONE SPINNING ORIFICE COMPRISING A PLURALITY OF ARCUATE SLOTS CIRCUMSCRIBING A SMALL PORTION OF THE PLATE, SAID SLOTS SEPARATED AT THEIR TERMINAL ENDS BY BRIDGES WHICH ARE RECESSED RELATIVE TO THE FACE OF THE SPINNERET PLATE AND MEANS FACILITATING AIR FLOW TO THE HOLLOW PORTION OF THE FILAMENT DURING SPINNING.
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |