US2516157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for spinning artificial filaments
Assignee: Akzo Nobel UK PLC
•
Filing: 1944-04-22
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Granted: 1950-07-25
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Expires: 1964-04-22
Abstract
No abstract record available.
Inventors
- 👤 Richard W Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:48
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0454
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US702382A
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US1677119A
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GB259455A
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US1957054A
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FR735668A
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US2194470A
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US2260251A
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US2225637A
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US2203793A
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US2225638A
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US2249797A
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GB515127A
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US2278362A
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US2346696A
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US2309072A
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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) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |