US2472591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing an oxidized nitrated cellulose
Assignee: Eastman Kodak Co
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Filing: 1946-03-29
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Granted: 1949-06-07
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Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 William O Kenyon
- 👤 Jr William F Fowler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:19
CPC Classifications
F; F16; F16K; F16K15/00; F16K15/02; F16K15/06; C; C08; C08B; C08B5/00; C08B5/02; C08B5/04
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) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |