US2984889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regenerated cellulose filament having large and small denier sections
Assignee: Akzo Nobel UK PLC
•
Filing: 1957-03-12
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Granted: 1961-05-23
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Expires: 1977-03-12
Abstract
No abstract record available.
Inventors
- 👤 Richard H Braunlich
- 👤 Theodore S Matter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:09
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/20; D01D5/12; D01D5/16; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2922; Y10T428/2925; Y10T428/2933
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2517694A
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US2788256A
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US2775505A
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US2780833A
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US2878548A
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US2820986A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |