Patent US3383993A successfully refreshed from Google Patents.
US3383993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoelectrophoretic imaging apparatus
Assignee: Xerox Corp
•
Filing: 1966-01-03
•
Granted: 1968-05-21
•
Expires: 1986-01-03
Abstract
No abstract record available.
Inventors
- 👤 Yeh Shu-Hsiung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:36
CPC Classifications
G; G03; G03G; G03G17/00; G03G17/04; G03G13/00; G03G13/14; G03G15/00; G03G15/01
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |