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Patent US3281680A successfully refreshed from Google Patents.
US3281680A
Expired / Lapsed
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Calibrator for use with a magnetic resonance spectrometer
Assignee: National Research Development Corp UK
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Filing: 1963-02-01
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Granted: 1966-10-25
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Expires: 1983-02-01
Abstract
No abstract record available.
Inventors
- 👤 Faulkner Eric Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:37
CPC Classifications
G; G01; G01R; G01R33/00; G01R33/20; G01R33/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A MICROWAVE MAGNETIC RESONANCE SPECTROMETER HAVING A CAVITY FOR COTNAINING A SPECIMEN, MEANS FOR SUPPLYING MICROWAVE ENERGY TO THE CAVITY AND MEANS FOR APPLYING A MODULATED MAGNETIC FIELD TO THE CAVITY IN WHICH A CALIBRATOR CIRCUIT IS PROVIDED COMPRISING A CRYSTAL DETECTOR, CONNECTION MEANS FOR FEEDING A SMALL FRACTION OF THE MICROWAVE ENERGY TO SAID DETECTOR AND MEANS FOR APPLYING A SIGNAL TO SAID DETETOR AT THE MODULATION FREQUENCY OF SAID MAGNETIC FIELD TO CAUSE THE DETECTOR TO REFLECT MICROWAVE ENERGY MODULATED AT SAID MODULATION FREQUENCY.
Claim 2
Dependent Claim
86 words
A MICROWAVE MAGNETIC RESONANCE SPECTROMETER HAVING A CAVITY FOR COTNAINING A SPECIMEN, MEANS FOR SUPPLYING MICROWAVE ENERGY TO THE CAVITY AND MEANS FOR APPLYING A MODULATED MAGNETIC FIELD TO THE CAVITY IN WHICH A CALIBRATOR CIRCUIT IS PROVIDED COMPRISING A CRYSTAL DETECTOR, CONNECTION MEANS FOR FEEDING A SMALL FRACTION OF THE MICROWAVE ENERGY TO SAID DETECTOR AND MEANS FOR APPLYING A SIGNAL TO SAID DETETOR AT THE MODULATION FREQUENCY OF SAID MAGNETIC FIELD TO CAUSE THE DETECTOR TO REFLECT MICROWAVE ENERGY MODULATED AT SAID MODULATION FREQUENCY.
References Cited (Backward Citations)
US3113263A
Cited
US3110858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |