Patent US3454875A successfully refreshed from Google Patents.
US3454875A
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Superconductive circuit and method for measuring magnetic fields and magnetic properties of materials employing serially connected superconductive loops
Assignee: BASCOM S DEAVER JR
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Filing: 1963-09-03
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Granted: 1969-07-08
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Expires: 1983-09-03
Abstract
No abstract record available.
Inventors
- 👤 Morris Bol
- 👤 Bascom S Deaver Jr
- 👤 William M Fairbank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:37
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/02; G01R33/035; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/842; Y10S505/843; Y10S505/845
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE METHOD OF MEASURING SMALL MAGNETRIC WHICH COMPRISES THE STEPS OF REDUCING THE PERSISTENT CURRENTS IN A SUPERCONDUCTIVE LOOP SUBSTANTIALLY TO ZERO, COUPLING THE FIELD TO BE MEASURED INTO SAID TO THEREBY INDUCE IN SAID LOOP A PERSISTENT CURRENT WHICH IS PROPORTIONAL TO THE MAGNETIC FIELD, AND SUBSEQUENTLY MEASURING SAID PERSISTENT CURRET TO GIVE A MEASURE OF THE MAGNETIC FIELD.
Claim 2
Independent Claim
60 words
THE METHOD OF MEASURING SMALL MAGNETRIC WHICH COMPRISES THE STEPS OF REDUCING THE PERSISTENT CURRENTS IN A SUPERCONDUCTIVE LOOP SUBSTANTIALLY TO ZERO, COUPLING THE FIELD TO BE MEASURED INTO SAID TO THEREBY INDUCE IN SAID LOOP A PERSISTENT CURRENT WHICH IS PROPORTIONAL TO THE MAGNETIC FIELD, AND SUBSEQUENTLY MEASURING SAID PERSISTENT CURRET TO GIVE A MEASURE OF THE MAGNETIC FIELD.
References Cited (Backward Citations)
US3320522A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-07 | 1973-01-06 | 1973-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-07 | 1977-01-06 | 1977-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-07 | 1981-01-06 | 1981-07-08 | $7700.00 | Window Closed / Lapsed |