US3793571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera tube comprising insulated diodes and a resistance layer
Assignee: US Philips Corp
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Filing: 1972-04-20
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Granted: 1974-02-19
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Expires: 1992-04-20
Abstract
Abstract In a camera tube whose target plate consists of a semiconductor such as silicon, the target plate is provided with a mosaic of discrete domains, each of which forms a rectifying junction with the substrate. the target plate being provided with an insulating layer exposing the domains. A resistance layer of lead monoxide is provided in order to conduct away the electrons incident on the insulating layer.
Inventors
- 👤 P Janssen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:30
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/451; H01J29/453; H01J29/455; E; E21; E21B; E21B7/00; E21B7/02; E21B7/024; E21B7/025
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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |