US3300710A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage reference circuit with low incremental impedance and low temperature coefficient
Assignee: Individual
•
Filing: 1963-01-23
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Granted: 1967-01-24
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Expires: 1983-01-23
Abstract
No abstract record available.
Inventors
- 👤 Dalton L Knauss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:02
CPC Classifications
H; H10; H10W; H10W90/00; G; G05; G05F; G05F3/00; G05F3/02; G05F3/08; G05F3/10; G05F3/16; G05F3/18; H10D; H10D99/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
105 words
IN A VOLTAGE REGULATING CIRCUIT: (A) A CLIPPER TYPE SEMICONDUCTOR ELEMENT WITH AN INTERMEDIATE THIN LAYER OF ONE CONDUCTIVITY TYPE AND TWO OUTSIDE LAYERS OF OPPOSITE CONDUCTIVITY TYPE, (B) SAID INTERMEDIATE LAYER HAVING A THICKNESS DIMENSION LESS THAN THE MINORITY CARRIER DIFFUSION LENGTH IN THE REGION COMPRISING SAID INTERMEDIATE LAYER TO THEREBY PROVIDE NEGATIVE INCREMENTAL IMPEDANCE, AND (C) A POSITIVE INCREMENTAL IMPEDANCE ELEMENT IN SERIES WITH SAID CLIPPER TYPE SEMICONDUCTOR ELEMENT TO SUBSTANTIALLY EXACTLY COMPENSATE FOR SAID NEGATIVE INCREMENTAL IMPEDANCE AND FORM A VOLTAGE REGULATING CIRCUIT OF SUBSTANTIALLY ZERO INCREMENTAL IMPEDANCE, SAID CLIPPER TYPE SEMICONDUCTOR ELEMENT AND POSITIVE IMPEDANCE ELEMENT HAVING SUBSTANTIALLY COMPENSATING TEMPERATURE COEFFICIENTS.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |