Patent US4759769A successfully refreshed from Google Patents.
US3122702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing and measuring the alignment of metastable helium atoms
Assignee: Individual
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Filing: 1958-10-07
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Granted: 1964-02-25
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Expires: 1978-10-07
Abstract
No abstract record available.
Inventors
- 👤 Peter A Franken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:29
CPC Classifications
H; H01; H01S; H01S1/00; G; G01; G01N; G01N24/00; G01N24/006; G01R; G01R33/00; G01R33/20; G01R33/24; G01R33/26; G01V; G01V3/00; G01V3/08; G04; G04F; G04F5/00; G04F5/14; H01J; H01J61/00; H01J61/02; H01J61/04; H01J61/10; H01J61/106; H03; H03L; H03L7/00; H03L7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN THE PROCESS OF OBTAINING MEASUREMENTS OF AN AMNIENT MAGNETIC FIELD H, THE STEPS OF EXCITING GROUND STATE HELIUM ATOMS TO THE METASTABLE 23S1 STATE, PASSING THROUGH SAID METASTABLE HELIUM ATOMS A BEAM OF RESONANCE RADIATION FROM A HELIUM ARC, SAID RADIATION HAVING SPECTRAL PROPERTIES PRODUCING ALIGNMENT OF SAID METASTABLE HELIUM ATOMS UPON INTERACTION THEREWITH; SITUATING THE ALIGHED HELIUM ATOMS IN SAID MAGNETIC FIELD H; SUBJECTING SAID HELIUM ATOMS TO A RADIO FREQUENCY MAGNETIC FIELD; VARYING THE FREQUENCY OF THE RADIO FREQUENCY MAGNETIC FIELD UNTIL THE FREQUENCY IS REACHED AT WHICH A MAXIMUM DIMINUTION OF ALIGHMENT OF THE METASTABLE HELIUM ATOMS OCCURS WHICH IS SHOWN BY A MAXIMUM DECREASE IN THE AMOUNT OF RESONANCE RADIATION PASSING THERETHROUGH; DETECTING CHANGES IN THE AMOUNT OF SAID RESONANCE RADIATION PASSING THROUGH SAID METASTABLE HELIUM ATOMS, AND SUBSTITUTING THE VALUE OF THIS FREQUENCY IN THE FORMULA
Claim 2
Dependent Claim
142 words
IN THE PROCESS OF OBTAINING MEASUREMENTS OF AN AMNIENT MAGNETIC FIELD H, THE STEPS OF EXCITING GROUND STATE HELIUM ATOMS TO THE METASTABLE 23S1 STATE, PASSING THROUGH SAID METASTABLE HELIUM ATOMS A BEAM OF RESONANCE RADIATION FROM A HELIUM ARC, SAID RADIATION HAVING SPECTRAL PROPERTIES PRODUCING ALIGNMENT OF SAID METASTABLE HELIUM ATOMS UPON INTERACTION THEREWITH; SITUATING THE ALIGHED HELIUM ATOMS IN SAID MAGNETIC FIELD H; SUBJECTING SAID HELIUM ATOMS TO A RADIO FREQUENCY MAGNETIC FIELD; VARYING THE FREQUENCY OF THE RADIO FREQUENCY MAGNETIC FIELD UNTIL THE FREQUENCY IS REACHED AT WHICH A MAXIMUM DIMINUTION OF ALIGHMENT OF THE METASTABLE HELIUM ATOMS OCCURS WHICH IS SHOWN BY A MAXIMUM DECREASE IN THE AMOUNT OF RESONANCE RADIATION PASSING THERETHROUGH; DETECTING CHANGES IN THE AMOUNT OF SAID RESONANCE RADIATION PASSING THROUGH SAID METASTABLE HELIUM ATOMS, AND SUBSTITUTING THE VALUE OF THIS FREQUENCY IN THE FORMULA
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |