US2231705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo compounds and material colored therewith
Assignee: Eastman Kodak Co
•
Filing: 1939-09-15
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Granted: 1941-02-11
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Expires: 1959-09-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:42
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/12; C09B31/14; C09B31/153; C09B31/157; C09B35/00; C09B35/02; C09B35/039; C09B35/08; C09B35/10; C09B35/14
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) | 1944-02-11 | 1944-08-12 | 1945-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-11 | 1948-08-12 | 1949-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-11 | 1952-08-12 | 1953-02-11 | $7700.00 | Window Closed / Lapsed |