US3442645A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrophotographic method
Assignee: RCA Corp
•
Filing: 1964-06-12
•
Granted: 1969-05-06
•
Expires: 1984-06-12
Abstract
No abstract record available.
Inventors
- 👤 Roger G Olden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:57
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/24; G; G03; G03G; G03G15/00; G03G15/14; G03G15/16; G03G15/1665; G03G15/167
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2576047A
Cited
US2756676A
Cited
US2812709A
Cited
US2955052A
Cited
US2982647A
Cited
US3124457A
Cited
US3267840A
Cited
US3288605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-05 | 1972-11-04 | 1973-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-05 | 1976-11-04 | 1977-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-05 | 1980-11-04 | 1981-05-06 | $7700.00 | Window Closed / Lapsed |