US2916678A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single crystal photoconducting photocells and methods of preparation thereof
Assignee: RCA Corp
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Filing: 1957-05-01
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Granted: 1959-12-08
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Expires: 1977-05-01
Abstract
No abstract record available.
Inventors
- 👤 Richard H Bube
- 👤 Soren M Thomsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:44
CPC Classifications
H; H10; H10P; H10P95/00; Y; Y10; Y10S; Y10S148/00; Y10S148/063
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
48 words
AN ELECTRICAL DEVICE COMPRISING TOW ELECTRODES IN CONTACTING WITH A CRYSTAL OF CADMIUM SULPHIDE, SAID CYRSTAL CONTAINING 10-10 TO 10-3 PARTS BY WEIGHT OF UNCOMPENSATED HALOGEN AND 2 TO 7 PARTS OF A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND SILVER PER MILLION PARTS CADMIUM SULPHIDE.
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) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |