US3098189A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic d. c. to a. c. amplifier
Assignee: General Electric Co
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Filing: 1960-04-11
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Granted: 1963-07-16
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Expires: 1980-04-11
Abstract
No abstract record available.
Inventors
- 👤 Theodor A Buchhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:36
CPC Classifications
H; H03; H03F; H03F19/00; Y; Y10; Y10S; Y10S336/00; Y10S336/01; Y10S505/00; Y10S505/825; Y10S505/855; Y10S505/856; Y10S505/857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A NOISE-FREE ZERO DRIFT AMPLIFIER INCLUDING IN COMBINATION FIRST AND SECOND INDUCTIVELY COUPLED WINDINGS FABRICATED FROM SUPERCONDUCTING MATERIALS, A MOVABLE MEMBER FABRICATED AT LEAST IN PART ON SUPERCONDUCTIVE MATERIALS IN JUXTAPOSITION TO SAID FIRST AND SECOND WINDINGS FOR INFLUENCING THE INDUCTIVE RELATION BETWEEN THE WINDINGS, MEANS FOR MOVING SAID MOVABLE MEMBER AT A PREDETERMINED RATE TO THEREBY VARY THE INDUCTIVE RELATION BETWEEN THE COILS, MEANS FOR IMPRESSING AN INPUT SIGNAL TO BE AMPLIFIED ON SAID FIRST WINDING, AND MEANS FOR DERIVING AN AMPLIFIED ALTERNATING CURRENT REPLICA OF SAID INPUT SIGNAL FROM SAID SECOND WINDING.
Claim 2
Dependent Claim
94 words
A NOISE-FREE ZERO DRIFT AMPLIFIER INCLUDING IN COMBINATION FIRST AND SECOND INDUCTIVELY COUPLED WINDINGS FABRICATED FROM SUPERCONDUCTING MATERIALS, A MOVABLE MEMBER FABRICATED AT LEAST IN PART ON SUPERCONDUCTIVE MATERIALS IN JUXTAPOSITION TO SAID FIRST AND SECOND WINDINGS FOR INFLUENCING THE INDUCTIVE RELATION BETWEEN THE WINDINGS, MEANS FOR MOVING SAID MOVABLE MEMBER AT A PREDETERMINED RATE TO THEREBY VARY THE INDUCTIVE RELATION BETWEEN THE COILS, MEANS FOR IMPRESSING AN INPUT SIGNAL TO BE AMPLIFIED ON SAID FIRST WINDING, AND MEANS FOR DERIVING AN AMPLIFIED ALTERNATING CURRENT REPLICA OF SAID INPUT SIGNAL FROM SAID SECOND WINDING.
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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |