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US2448871A
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Azo compounds containing a tetrahydroquinoline nucleus
Assignee: Eastman Kodak Co
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Filing: 1945-12-29
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Granted: 1948-09-07
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Expires: 1965-12-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
- 👤 James G Mcnally
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:57
CPC Classifications
C; C09; C09B; C09B31/00; C09B31/02; C09B31/12; C09B31/14; C09B31/153; C09B31/157
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2067726A
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US2161627A
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US2261176A
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US2227963A
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US2249774A
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US2364347A
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US2323315A
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US2342678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |