US3305790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination hall-effect device and transistors
Assignee: General Precision Inc
•
Filing: 1962-12-21
•
Granted: 1967-02-21
•
Expires: 1982-12-21
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Parsons
- 👤 Ziemowit R S Ratajski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:08
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/26; H10; H10N; H10N52/00; H10N52/101
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
AN INTEGRATED SOLID-STATE CIRCUIT COMPONENT, COMPRISING: A HALL CRYSTAL OF SEMI-CONDUCTIVE MATERIAL OF ONE CONDUCTIVITY-TYPE, SAID CRYSTAL HAVING OHMIC CURRENT ELECTRODES THEREON SPACED TO PASS AN ELECTRIC CURRENT ALONG A FIRST AXIS OF THE CRYSTAL AND THUS GENERATE A HALL VOLTAGE OUTPUT ALONG A SECOND AXIS TRANSVERSE TO THE FIRST; A FIRST AND A SECOND REGION OF THE OPPOSITE CONDUCTIVITYTYPE FORMING SPACED OPPOSED P-N RECTIFYING JUNCTIONS IN SAID CRYSTAL AT A LOCATION ALONG SAID TRANSVERSE AXIS, THEREBY DEFINING A TRANSISTOR IN WHICH THE MATERIAL OF THE HALL CRYSTAL CONSTITUTES THE BASE REGION AND, CONSEQUENTLY, HAS THE HALL OUTPUT VOLTAGE DIRECTLY IMPRESSED ON THE TRANSISTOR BASE REGION.
Claim 2
Dependent Claim
106 words
AN INTEGRATED SOLID-STATE CIRCUIT COMPONENT, COMPRISING: A HALL CRYSTAL OF SEMI-CONDUCTIVE MATERIAL OF ONE CONDUCTIVITY-TYPE, SAID CRYSTAL HAVING OHMIC CURRENT ELECTRODES THEREON SPACED TO PASS AN ELECTRIC CURRENT ALONG A FIRST AXIS OF THE CRYSTAL AND THUS GENERATE A HALL VOLTAGE OUTPUT ALONG A SECOND AXIS TRANSVERSE TO THE FIRST; A FIRST AND A SECOND REGION OF THE OPPOSITE CONDUCTIVITYTYPE FORMING SPACED OPPOSED P-N RECTIFYING JUNCTIONS IN SAID CRYSTAL AT A LOCATION ALONG SAID TRANSVERSE AXIS, THEREBY DEFINING A TRANSISTOR IN WHICH THE MATERIAL OF THE HALL CRYSTAL CONSTITUTES THE BASE REGION AND, CONSEQUENTLY, HAS THE HALL OUTPUT VOLTAGE DIRECTLY IMPRESSED ON THE TRANSISTOR BASE REGION.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |