US3580911A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic materials
Assignee: Eastman Kodak Co
•
Filing: 1969-08-05
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Granted: 1971-05-25
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Expires: 1989-08-05
Abstract
Abstract TRIMETHINE CYANINE DYES ARE PROVIDED WHICH CONTAIN A 3-INDOLE NUCLEUS WHICH CONTAINS EITHER A FUSED AROMATIC RING, AN ALKYLENE BRIDGE OR A 2-HETEROCYCLIC SUBSTITUENT.
Inventors
- 👤 John D Mee
- 👤 Donald W Heseltine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:08
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/005; G03C1/485; G03C1/48515; G03C1/48523; G03C1/4853
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |