US3492123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct positive silver halide emulsions containing carbocyanine dyes having a carbazole nucleus
Assignee: Eastman Kodak Co
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Filing: 1967-01-17
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Granted: 1970-01-27
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Expires: 1987-01-17
Abstract
No abstract record available.
Inventors
- 👤 John D Mee
- 👤 Donald W Heseltine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:31
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/832; C; C07; C07D; C07D209/00; C07D209/56; C07D209/58; C07D209/60; C07D241/00; C07D241/36; C07D241/38; C07D241/40; C07D241/44; C07D401/00; C07D401/02; C07D401/04; C07D471/00; C07D471/02; C07D471/06; C09; C09B; C09B23/00; C09B23/02; C09B23/04; C09B23/06; C09B23/08; C09B23/083; C09B23/086; C09B23/10; C09B23/105; C09B23/107; C09B23/14; C09B23/145; G03C1/005; G03C1/06; G03C1/08; G03C1/10; G03C1/12; G03C1/14; G03C1/18; G03C1/485; G03C1/48515; G03C1/48523; G03C1/4853; Y; Y10; Y10S; Y10S430/00; Y10S430/001; Y10S430/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB760739A
Cited
US3326688A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |