Patent US2837703A successfully refreshed from Google Patents.
US2837703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lidow
Assignee: —
•
Filing: —
•
Granted: 1958-06-03
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Expires: 1975-06-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:15
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/10; H10W90/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A COMPOSITE METAL RECTIFIER COMPRISING, IN SERIES, A PLURALITY OF RECTIFYING ELEMENTS EACH HAVING THE CHARACTERISTIC OF A LEAKAGE CURRENT WHICH VARIES WITH CHANGE OF TEMPERATURE OVER A RANGE OF TEMPERATURES, ONE OF SAID RECITIFYING ELEMENTS HAVING A MINIMUM LEAKAGE AT ONE TEMPERATURE IN SAID RANGE AND ANOTHER OF SAID RECTIFYING ELEMENTS HAVING A MINIMUM LEAKAGE AT A DIFFERENT TEMPERATURE IN SAID RANGE, ONE OF SAID RECTIFYING ELEMENTS CONSISTING OF A GERMANIUM RECTIFIER, AND THE OTHER OF SAID RECTIFYING ELEMENTS CONSISTING OF A SELENIUM RECITIFIER.
Claim 2
Dependent Claim
85 words
A COMPOSITE METAL RECTIFIER COMPRISING, IN SERIES, A PLURALITY OF RECTIFYING ELEMENTS EACH HAVING THE CHARACTERISTIC OF A LEAKAGE CURRENT WHICH VARIES WITH CHANGE OF TEMPERATURE OVER A RANGE OF TEMPERATURES, ONE OF SAID RECITIFYING ELEMENTS HAVING A MINIMUM LEAKAGE AT ONE TEMPERATURE IN SAID RANGE AND ANOTHER OF SAID RECTIFYING ELEMENTS HAVING A MINIMUM LEAKAGE AT A DIFFERENT TEMPERATURE IN SAID RANGE, ONE OF SAID RECTIFYING ELEMENTS CONSISTING OF A GERMANIUM RECTIFIER, AND THE OTHER OF SAID RECTIFYING ELEMENTS CONSISTING OF A SELENIUM RECITIFIER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-02 | 1961-12-02 | 1962-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-02 | 1965-12-02 | 1966-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-02 | 1969-12-02 | 1970-06-03 | $7700.00 | Window Closed / Lapsed |