US3825422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imaging process
Assignee: Xerox Corp
•
Filing: 1972-10-26
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Granted: 1974-07-23
•
Expires: 1992-10-26
Abstract
Abstract VANADYL AND TITANYL PHTHALOCYANINE COMPOUNDS AS ELECTRICALLY PHOTOSENSITIVE PIGMENTS IN PHOTOELECTROPHORETIC IMAGING.
Inventors
- 👤 R Gruber
- 👤 B Grushkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:08
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/04
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) | 1977-07-22 | 1978-01-21 | 1978-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-22 | 1982-01-21 | 1982-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-22 | 1986-01-21 | 1986-07-23 | $7700.00 | Window Closed / Lapsed |