Patent US4785446A successfully refreshed from Google Patents.
Patent US2985757A successfully refreshed from Google Patents.
US2985757A
Expired / Lapsed
US
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Photosensitive capacitor device and method of producing the same
Assignee: CBS Broadcasting Inc
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Filing: 1956-10-05
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Granted: 1961-05-23
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Expires: 1976-10-05
Abstract
No abstract record available.
Inventors
- 👤 Jacobs Harold
- 👤 Alexander P Ramsa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:20
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/10; H01G; H01G7/00; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
A COMPOSITION WHICH IS CAPABLE OF PRODUCING A PHOTOCAPACTIVE RESPONSE COMPRISING AN INTERDIFFUSED MIXTURE OF ABOUT 0.9 MOLE OF CADMIUM SULFIDE CRYSTALS, AND ABOUT 0.1 MOLE OF ZINC SULFIDE CRYSTALS ACTIVATED WITH A METAL OF THE GROUP CONSISTING OF SILVER AND COPPER, SAID CRYSTALS CONTAINING TRACE QUANTITIES OF CHLORIDE IN AMOUNT SUFFICIENT TO CAUSE THE MIXTUE TO PRODUCE CHANGES IN THE DIELECTRIC CONSTANT OF A DIELECTRIC MEDIUM WHEN IMBEDDED IN SAID DIELECTIC MEDIUM RESPONSIVE TO LIGHT IMPINGED ON THE DIELECTRIC MEDIUM.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |