Patent US3303427A successfully refreshed from Google Patents.
US3303427A
Expired / Lapsed
US
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Cryogenic hall-effect semimetal electronic element
Assignee: International Business Machines Corp
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Filing: 1962-02-27
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Granted: 1967-02-07
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Expires: 1982-02-27
Abstract
No abstract record available.
Inventors
- 👤 Esaki Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:28
CPC Classifications
H; H10; H10N; H10N52/00; H10N50/00; H10N50/10; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528; Y10T428/12535
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN ELECTRONIC ELEMENT COMPRISING: A SEMIMETAL CRYSTALLINE BODY; LOAD MEANS CONNECTED IN ELECTRICAL CIRCUIT ARRANGEMENT WITH SAID CRYSTALLINE BODY; MEANS FOR MAINTAINING SAID CRYSTALLINE BODY AT A TEMPERATURE WHEREAT THE MAGNETORESISTANCE OF SAID CRYSTALLINE BODY IS ELECTRIC FIELD DEPENDENT; MEANS FOR APPLYING PERPENDICULAR ELECTRIC AND MAGNETIC FIELDS TO SAID CRYSTALLINE BODY OF SUCH VALUE THAT SAID CRYSTALLINE BODY EXHIBITS A SHARP CHANGE IN ITS MAGNETORESISTANCE FROM A RELATIVELY HIGH VALUE TO A RELATIVELY LOW VALUE WHEN THE MAGNITUDE OF SAID ELECTRIC FIELD IS INCREASED ABOVE A CRITICAL VALUE.
Claim 2
Dependent Claim
88 words
AN ELECTRONIC ELEMENT COMPRISING: A SEMIMETAL CRYSTALLINE BODY; LOAD MEANS CONNECTED IN ELECTRICAL CIRCUIT ARRANGEMENT WITH SAID CRYSTALLINE BODY; MEANS FOR MAINTAINING SAID CRYSTALLINE BODY AT A TEMPERATURE WHEREAT THE MAGNETORESISTANCE OF SAID CRYSTALLINE BODY IS ELECTRIC FIELD DEPENDENT; MEANS FOR APPLYING PERPENDICULAR ELECTRIC AND MAGNETIC FIELDS TO SAID CRYSTALLINE BODY OF SUCH VALUE THAT SAID CRYSTALLINE BODY EXHIBITS A SHARP CHANGE IN ITS MAGNETORESISTANCE FROM A RELATIVELY HIGH VALUE TO A RELATIVELY LOW VALUE WHEN THE MAGNITUDE OF SAID ELECTRIC FIELD IS INCREASED ABOVE A CRITICAL VALUE.
References Cited (Backward Citations)
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Cited
US2902660A
Cited
US3011064A
Cited
US3010034A
Cited
US3046458A
Cited
US3030559A
Cited
US3045341A
Cited
US3050698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |