Patent US2161766A successfully refreshed from Google Patents.
US2161766A
Expired / Lapsed
US
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Synthetic fiber
Assignee: Carbide and Carbon Chemicals Corp
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Filing: 1937-09-15
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Granted: 1939-06-06
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Expires: 1957-09-15
Abstract
No abstract record available.
Inventors
- 👤 Edward W Rugeley
- 👤 Jr Theophilus A Feld
- 👤 John F Conlon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:13
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/02; Y; Y10; Y10S; Y10S264/00; Y10S264/73; Y10S428/00; Y10S428/907; Y10S57/00; Y10S57/904; Y10S8/00; Y10S8/10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/298; Y10T442/00; Y10T442/30; Y10T442/3976; Y10T442/40; Y10T442/413; Y10T442/60; Y10T442/696
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-06-05 | 1942-12-05 | 1943-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-05 | 1946-12-05 | 1947-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-05 | 1950-12-05 | 1951-06-06 | $7700.00 | Window Closed / Lapsed |