Patent FR2013463A1 successfully refreshed from Google Patents.
US2517694A
Expired / Lapsed
US
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Crimped artificial filament
Assignee: Akzo Nobel UK PLC
•
Filing: 1943-09-14
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Granted: 1950-08-08
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Expires: 1963-09-14
Abstract
No abstract record available.
Inventors
- 👤 Howard D Merion
- 👤 Wayne A Sisson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:22
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/22; D01D5/253; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925; Y10T428/2933; Y10T428/2964; Y10T428/2965
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB493288A
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FR837555A
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US2287839A
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US2249745A
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US2315560A
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US2302077A
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US2340377A
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US2302971A
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US2297746A
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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) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |