Patent US2765385A successfully refreshed from Google Patents.
US2765385A
Expired / Lapsed
US
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Sintered photoconducting layers
Assignee: RCA Corp
•
Filing: 1954-12-03
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Granted: 1956-10-02
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Expires: 1974-12-03
Abstract
No abstract record available.
Inventors
- 👤 Soren M Thomsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:06
CPC Classifications
H; H10; H10P; H10P95/00; H10F; H10F30/00; Y; Y10; Y10S; Y10S84/00; Y10S84/19
Claims Analysis
Total Claims: 0
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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) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |