US2387751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-aryltetrahydroquinolines
Assignee: Eastman Kodak Co
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Filing: 1942-01-21
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Granted: 1945-10-30
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Expires: 1962-01-21
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
- 👤 James B Normington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:52
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/04; C07D215/06; C10; C10M; C10M1/00; C10M1/08; G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3028; G03C7/00; G03C7/30; G03C7/407; G03C7/413; G03C7/4136; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30
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) | 1948-10-29 | 1949-04-30 | 1949-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-10-29 | 1953-04-30 | 1953-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-10-29 | 1957-04-30 | 1957-10-30 | $7700.00 | Window Closed / Lapsed |