US3144575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Parametric target for infrared televsion pickup tubes
Assignee: Individual
•
Filing: 1960-04-18
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Granted: 1964-08-11
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Expires: 1980-04-18
Abstract
No abstract record available.
Inventors
- 👤 Victor A Babits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:51
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/10; H01J29/36; H01J29/39; H01J29/45; H01J29/458
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
108 words
A TARGET ELECTRODE FOR AN INFRARED TELEVISION PICKUP TUBE COMPRISING A SHEET OF MATERIAL WHICH IS TRANSLUSCENT TO INFRARED RAYS AND ELECTRICALLY CONDUCTIVE, MEANS PROVIDING ANOTHER SHEET OF SEMICONDUCTOR MATERIAL ADJACENT TO SAID ELECTRICALLY CONDUCTIVE MATERIALS, MEANS FOR RAISING THE TEMPERATURE OF SAID SEMICONDUCTOR MATERIAL ABOVE ITS CURIE TEMPERATURE, SAID SEMICONDUCTOR MATERIAL CHANGING ITS DIELECTRIC CONSTANT UPON INCIDENT INFRARED RADIATION AND UPON AN IMPRESSED ELECTRIC FIELD CREATED BY THE IMPINGING ELECTRONS OF THE SCANNING CATHODE RAY BEAM ON SAID T ARGET, AND SAID INCIDENT INFRARED RADIATION AND SAID IMPRESSED ELECTRICAL FIELD COMBINING TO AMPLIFY EACH OTHER WHEN SAID SEMICONDUCTOR MATERIAL IS AT A TEMPERATURE ABOVE THE CURIE TEMPERATURE.
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) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |