Patent US2879543A successfully refreshed from Google Patents.
US2879543A
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Spinneret coupling assembly
Assignee: Akzo Nobel UK PLC
•
Filing: 1956-05-03
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Granted: 1959-03-31
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Expires: 1976-05-03
Abstract
No abstract record available.
Inventors
- 👤 Henry J Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:27
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US823009A
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US1005123A
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US1371113A
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US2045722A
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US2108285A
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US2286565A
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US2408713A
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US2489870A
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US2784843A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |