US3597196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitization of organic photoconductors with cyanine merocyanine,and azocyanine dyes
Assignee: Eastman Kodak Co
•
Filing: 1968-07-22
•
Granted: 1971-08-03
•
Expires: 1988-07-22
Abstract
Abstract ORGANIC PHOTOCONDUCTORS ARE SENSITIZED WITH CYANINE, MEROCYANINE OR AZACYANINE DYES WHICH (U) HAVE A CATHODIC POAROGRAPHIC HALF-WAVE POTENTIAL MORE POSITIVE THEN -1.0 VOLT; (2) HAVE AN ANODIC POLAROGRAPHIC HALFWAVE POTENTIAL AND A CATHODIC POLAROGRAPHIC HAALF-WAVE POTENTIAL WHICH, WHEN ADDED TOGETHER, GIVE A SUM MORE POSITIVE THAN -0.10 VOLT; AND (3) DESENSITIVE NEGATIVE SILVER BROMOIODIDE EMULSIONS, CONTAINING 99.35 MOLE PERCENT BROMIDE, MORE THAN 0.4 LOG E AT RADIATION OF 365 NM. WHEN INCORPORATED THEREIN AT A CONCENTRATION OF 0.2 MILLIMOLE OF DYE PER MOLE OF SILVER HALIDE.
Inventors
- 👤 Jean E Jones
- 👤 Charles J Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:36
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0644; G03G5/0646; G03G5/065; G03G5/0664; G03G5/0666; G03G5/0668; G03G5/067; G03G5/0672; G03G5/0674
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |