US2286822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovery of cellulose esters from scrap
Assignee: Eastman Kodak Co
•
Filing: 1939-03-10
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Granted: 1942-06-16
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Expires: 1959-03-10
Abstract
No abstract record available.
Inventors
- 👤 Carl J Malm
- 👤 Gustave B Bachman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:50
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/04; C08J11/06; C08J2301/00; C08J2301/08; C08J2301/10; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62
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) | 1945-06-15 | 1945-12-15 | 1946-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-15 | 1949-12-15 | 1950-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-15 | 1953-12-15 | 1954-06-16 | $7700.00 | Window Closed / Lapsed |