US2466008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anthraquinone compounds containing a 2, 2, 2-trifluoroethylamino group
Assignee: Eastman Kodak Co
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Filing: 1946-03-26
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Granted: 1949-04-05
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Expires: 1966-03-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:03
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/28; C09B1/50; C09B1/51; C09B1/515
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) | 1952-04-04 | 1952-10-04 | 1953-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-04 | 1956-10-04 | 1957-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-04 | 1960-10-04 | 1961-04-05 | $7700.00 | Window Closed / Lapsed |