Patent US3586672A successfully refreshed from Google Patents.
US3586672A
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Dimethine dyes containing a 2-aromatically substituted indole nucleus and a second desensitizing nucleus
Assignee: Eastman Kodak Co
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Filing: 1969-06-19
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Granted: 1971-06-22
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Expires: 1989-06-19
Abstract
Abstract NOVEL DIMETHINE DYES ARE PROVIDED WHICH CONTAIN A 2-AROMATICALLY SUBSTITUTED INDOLE NUCLEUS AND A SECOND NUCLEUS SELECTED FROM THE GROUP CONSISTING OF IMIDAZO (4,5-B) QUINOXALINE, PYRROLO(2,3-B)PYRIDYL, NITRO-SUBSTITUED OXAZOLE, NITRO-SUBSTITUTED THIAZOLE AND NITRO-SUBSTITIUTED SELENAZOLE.
Inventors
- 👤 Robert A Litzerman
- 👤 Donald W Heseltine
- 👤 John D Mee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:57
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/22; C; C07; C07D; C07D487/00; C07D487/02; C07D487/04; C09; C09B; C09B23/00; C09B23/10; C09B23/105; G03C1/485; G03C1/48515; G03C1/48523; G03C1/4853
Claims Analysis
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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) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |