Patent US5713913A successfully refreshed from Google Patents.
US3072803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transistor utilizing a longitudinally directed magnetic field
Assignee: NEC Corp
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Filing: 1959-11-13
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Granted: 1963-01-08
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Expires: 1979-11-13
Abstract
No abstract record available.
Inventors
- 👤 Sato Akihiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:01
CPC Classifications
H; H03; H03F; H03F15/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A TRANSISTOR COMPRISING A SEMICONDUCTOR BODY HAVING A PLURALITY OF ELECTRODES, ONE OF SAID ELECTRODES BEING OF SEGMENTED ANNULAR SHAPE SURROUNDING A SECOND OF SAID ELECTRODES, FIRST AND SECOND ELECTRICAL CONDUCTORS CONNECTED RESPECTIVELY TO THE ENDS OF THE SEGMENTED ANNULAR ELECTRODE, WHEREBY, WHEN AN ELECTRIC CURRENT IS PRODUCED
Claim 2
Dependent Claim
48 words
A TRANSISTOR COMPRISING A SEMICONDUCTOR BODY HAVING A PLURALITY OF ELECTRODES, ONE OF SAID ELECTRODES BEING OF SEGMENTED ANNULAR SHAPE SURROUNDING A SECOND OF SAID ELECTRODES, FIRST AND SECOND ELECTRICAL CONDUCTORS CONNECTED RESPECTIVELY TO THE ENDS OF THE SEGMENTED ANNULAR ELECTRODE, WHEREBY, WHEN AN ELECTRIC CURRENT IS PRODUCED
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |