US2811770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of tow from filaments of acrylonitrile polymers
Assignee: EIDP Inc
•
Filing: 1953-12-08
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Granted: 1957-11-05
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Expires: 1973-12-08
Abstract
No abstract record available.
Inventors
- 👤 Jr William Oliver Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:58
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0463; D01D11/00; D01D11/04; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24132; Y10T428/24355; Y10T428/24446; Y10T428/24479; Y10T428/2457; Y10T428/29; Y10T428/2913; Y10T428/2922
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2055412A
Cited
US2181777A
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US2369395A
Cited
US2494965A
Cited
US2475052A
Cited
US2677007A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-04 | 1961-05-06 | 1961-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-04 | 1965-05-06 | 1965-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-04 | 1969-05-06 | 1969-11-05 | $7700.00 | Window Closed / Lapsed |