US2311013A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for preparing stiffened fabrics
Assignee: Celanese Corp
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Filing: 1940-11-05
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Granted: 1943-02-16
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Expires: 1960-11-05
Abstract
No abstract record available.
Inventors
- 👤 Whitehead William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:20
CPC Classifications
D; D06; D06M; D06M17/00; D06M17/02; A; A41; A41B; A41B3/00; A41B3/10; A41H; A41H43/00; A41H43/04; D06B; D06B3/00; D06B3/10; D06C; D06C29/00; D06B2700/00; D06B2700/27; Y; Y10; Y10T; Y10T156/00; Y10T156/17; Y10T156/1798
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) | 1946-02-15 | 1946-08-17 | 1947-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-15 | 1950-08-17 | 1951-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-15 | 1954-08-17 | 1955-02-16 | $7700.00 | Window Closed / Lapsed |