US3387973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive substances having triphenylamine moieties for electrophotography
Assignee: Eastman Kodak Co
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Filing: 1965-03-16
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Granted: 1968-06-11
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Expires: 1985-03-16
Abstract
No abstract record available.
Inventors
- 👤 Charles J Fox
- 👤 Arthur L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:27
CPC Classifications
C; C08; C08G; C08G67/00; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0618; G03G5/07; G03G5/075; G03G5/076; G03G5/0763; G03G5/0764
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) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |