Patent EP0021499A1 successfully refreshed from Google Patents.
US3148283A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage-sensitive capacitor employing reverse biased junction and floating center wafer
Assignee: Lanteris Space LLC
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Filing: 1960-06-21
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Granted: 1964-09-08
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 George C Messenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:25
CPC Classifications
H; H10; H10D; H10D99/00; H10D1/00; H10D1/60; H10D1/62
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
VARIABLE-CAPACITY APPARATUS COMPRISING A WAFER OF A SEMICONDUCTIVE MATERIAL OF A SINGLE CONDUCTIVITY TYPE HAVING TWO RECTIFYING CONNECTIONS TO OPPOSITE SIDES THEREOF, SAID CONNECTIONS HAVING THE SAME POLARITY OF REVERSE BIAS WITH RESPECT TO SAID BODY AND AT LEAST ONE OF SAID CONNECTIONS HAVING A CAPACITY WHICH DECREASES SUBSTANTIALLY WITH INCREASES IN THE REVERSE BIAS THEREOF, AND MEANS FOR APPLYING A VARYING VOLTAGE BETWEEN SAID CONNECTIONS TO VARY SUBSTANTIALLY THE CAPACITY OF AT LEAST ONE OF SAID CONNECTIONS, EACH OF SAID CONNECTIONS CONSTITUTING THE SOLE SOURCE OF CURRENT FOR THE OTHER WHEREBY SAID CONNECTIONS ARE PREVENTED FROM BEING FORWARD BIASED SIMULTANEOUSLY DESPITE CHANGES IN THE POLARITY OF SAID VOLTAGE.
Claim 2
Dependent Claim
109 words
VARIABLE-CAPACITY APPARATUS COMPRISING A WAFER OF A SEMICONDUCTIVE MATERIAL OF A SINGLE CONDUCTIVITY TYPE HAVING TWO RECTIFYING CONNECTIONS TO OPPOSITE SIDES THEREOF, SAID CONNECTIONS HAVING THE SAME POLARITY OF REVERSE BIAS WITH RESPECT TO SAID BODY AND AT LEAST ONE OF SAID CONNECTIONS HAVING A CAPACITY WHICH DECREASES SUBSTANTIALLY WITH INCREASES IN THE REVERSE BIAS THEREOF, AND MEANS FOR APPLYING A VARYING VOLTAGE BETWEEN SAID CONNECTIONS TO VARY SUBSTANTIALLY THE CAPACITY OF AT LEAST ONE OF SAID CONNECTIONS, EACH OF SAID CONNECTIONS CONSTITUTING THE SOLE SOURCE OF CURRENT FOR THE OTHER WHEREBY SAID CONNECTIONS ARE PREVENTED FROM BEING FORWARD BIASED SIMULTANEOUSLY DESPITE CHANGES IN THE POLARITY OF SAID VOLTAGE.
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) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |