US2875359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photoconductive device
Assignee: RCA Corp
•
Filing: 1956-08-06
•
Granted: 1959-02-24
•
Expires: 1976-08-06
Abstract
No abstract record available.
Inventors
- 👤 Appleton D Cope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:34
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/02; C23C14/027; H; H01; H01J; H01J9/00; H01J9/20; H01J9/233
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |