US2460376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized lower fatty acid ester of cellulose
Assignee: Celanese Corp
•
Filing: 1945-10-02
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Granted: 1949-02-01
•
Expires: 1965-10-02
Abstract
No abstract record available.
Inventors
- 👤 Amerigo F Caprio
- 👤 Horback William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:10
CPC Classifications
D; D01; D01F; D01F2/00; D01F2/24; D01F2/28; Y; Y10; Y10S; Y10S260/00; Y10S260/47
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |