Patent EP0464839A2 successfully refreshed from Google Patents.
Patent US2034008A successfully refreshed from Google Patents.
US2034008A
Expired / Lapsed
US
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Artificial filament, yarn, or thread
Assignee: Celanese Corp
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Filing: 1930-08-19
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Granted: 1936-03-17
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Expires: 1950-08-19
Abstract
No abstract record available.
Inventors
- 👤 Taylor William Ivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:48
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/04; D01F; D01F11/00; D01F2/00; D01F2/24; D01F2/28; D01F2/30; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965
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) | 1939-03-17 | 1939-09-16 | 1940-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-03-17 | 1943-09-16 | 1944-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-03-17 | 1947-09-16 | 1948-03-17 | $7700.00 | Window Closed / Lapsed |