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US2292436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeing
Assignee: Celanese Corp
•
Filing: 1940-08-03
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Granted: 1942-08-11
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Expires: 1960-08-03
Abstract
No abstract record available.
Inventors
- 👤 Ellis George Holland
- 👤 Wesson Alexander James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:28
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/40; D06P5/00; D06P5/22
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) | 1945-08-10 | 1946-02-09 | 1946-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-08-10 | 1950-02-09 | 1950-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-08-10 | 1954-02-09 | 1954-08-11 | $7700.00 | Window Closed / Lapsed |