US3238446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nuclear magnetic resonance technique for measurement of mixtures
Assignee: Individual
•
Filing: 1961-12-12
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Granted: 1966-03-01
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Expires: 1981-12-12
Abstract
No abstract record available.
Inventors
- 👤 John R Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:54
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
IN THE ANALYSIS OF A TWO COMPONENT MIXTURE WHEREIN NUCLEI THEREOF ARE POLARIZED AND AT EQUILIBRIUM ATTAIN A PREDOMINANT ORIENTATION, THE STEPS OF: (A) REPEATEDLY APPLYING PAIRS OF SIMILARLY ORIENTED ELECTROMAGNETIC FIELD PULSES OF SAID MIXTURE TO PRODUCE GYROMAGNETIC PRECESSION SPIN ECHO SIGNALS IN THE NUCLEI OF EACH SAID COMPONENT, (B) DETECTING THE ELECTROMAGNETIC PRECESSION SIGNALS FROM THE COMPONENTS FOLLOWING REMOVAL OF SAID FIELD PULSES IN AT LEAST TWO DIFFERENT TIME DOMAINS WHERE ONE OF SAID DOMAINS IS SUCH THAT SAID SIGNALS ARE PREDOMINANTLY CONTROLLED BY ONE OF SAID TWO COMPONENTS AND THE OTHER OF SAID DOMAINS IS SUCH THAT SAID SIGNALS ARE PREDOMINANTLY CONTROLLED BY THE OTHER OF SAID TWO COMPONENTS, AND (C) RECORDING FUNCTIONS REPRESENTATIVE OF THE LOGARITHM OF SAID SIGNALS.
Claim 2
Dependent Claim
123 words
IN THE ANALYSIS OF A TWO COMPONENT MIXTURE WHEREIN NUCLEI THEREOF ARE POLARIZED AND AT EQUILIBRIUM ATTAIN A PREDOMINANT ORIENTATION, THE STEPS OF: (A) REPEATEDLY APPLYING PAIRS OF SIMILARLY ORIENTED ELECTROMAGNETIC FIELD PULSES OF SAID MIXTURE TO PRODUCE GYROMAGNETIC PRECESSION SPIN ECHO SIGNALS IN THE NUCLEI OF EACH SAID COMPONENT, (B) DETECTING THE ELECTROMAGNETIC PRECESSION SIGNALS FROM THE COMPONENTS FOLLOWING REMOVAL OF SAID FIELD PULSES IN AT LEAST TWO DIFFERENT TIME DOMAINS WHERE ONE OF SAID DOMAINS IS SUCH THAT SAID SIGNALS ARE PREDOMINANTLY CONTROLLED BY ONE OF SAID TWO COMPONENTS AND THE OTHER OF SAID DOMAINS IS SUCH THAT SAID SIGNALS ARE PREDOMINANTLY CONTROLLED BY THE OTHER OF SAID TWO COMPONENTS, AND (C) RECORDING FUNCTIONS REPRESENTATIVE OF THE LOGARITHM OF SAID SIGNALS.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |