US3677752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bis(dialkylaminoaryl)ethylene photoconductors
Assignee: Eastman Kodak Co
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Filing: 1969-09-02
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Granted: 1972-07-18
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Expires: 1989-09-02
Abstract
Abstract 1,1-BIS(DIALKYLAMINOACRYL)ETHYLENES ARE USEFUL AS ORGANIC PHOTOCONDUCTORS IN ELECTROPHOTOGRAPHIC SYSTEMS.
Inventors
- 👤 Jerome J Looker
- 👤 Charles J Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:32
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0601; G03G5/0612; G03G5/0614; G03G5/06142; G03G5/06147
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |