US3117282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maser recovery system
Assignee: General Electric Co
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Filing: 1960-06-21
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Granted: 1964-01-07
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Gunter K Wessel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:03
CPC Classifications
H; H01; H01S; H01S1/00; H01S1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
177 words
IN COMBINATION, A MASER DEVICE HAVING AN ACTIVE MEMBER, CIRCUIT MEANS ASSOCIATED WITH SAID ACTIVE MEMBER FOR COUPLING THERETO SIGNALS OF FREQUENCY (FS), A PUMPING SOURCE OF FREQUENCY (FP) AND A RECOVERY PULSE SOURCE OF FREQUENCY (FR), SAID ACTIVE MEMBER TAKING THE FORM OF A DOPED CRYSTAL, SAID CRYSTAL DOPING BEING OF IONS SUFFICIENTLY DISTANT FROM ONE ANOTHER IN THE CRYSTAL LATTICE TO PREVENT SUBSTANTIAL COUPLING, SAID IONS BEING CHARACTERIZED BY AN INNER MAGNETIC QUANTUM NUMBER (J) OF AT LEAST 3/2 PERMITTING AT LEAST FOUR ENERGY LEVELS DESCRIPTIVE OF THE FINE STRUCTURE WITHOUT CREATING IN THE PRESENCE OF A MAGNETIC FIELD SUBSTANTIAL HYPERFINE STRUCTURE, SAID CRYSTAL BEING SELECTED SUCH THAT THE SPATIALLY REPETITIVE ELECTRIC FIELD PROVIDED THEREIN CAUSES A SEPARATION OF THE ENERGY LEVELS ABSENT A MAGNETIC FIELD BY AN ENERGY WHICH IS SUBSTANTIAL WITH RESPECT TO THE ENERGY CORRESPONDING TO A TRANSITION OF SIGNAL FREQUENCY, MEANS FOR APPLYING A MAGNETIC FIELD TO SAID ACTIVE MEMBER WHOSE STRENGTH AND DIRECTION IS SELECTED TO INDUCE ADDITIONAL SUBSTANTIAL SPLITTING OF THE ENERGY LEVELS TO CREATE FOUR ENERGY LEVELS EX-
Claim 2
Dependent Claim
177 words
IN COMBINATION, A MASER DEVICE HAVING AN ACTIVE MEMBER, CIRCUIT MEANS ASSOCIATED WITH SAID ACTIVE MEMBER FOR COUPLING THERETO SIGNALS OF FREQUENCY (FS), A PUMPING SOURCE OF FREQUENCY (FP) AND A RECOVERY PULSE SOURCE OF FREQUENCY (FR), SAID ACTIVE MEMBER TAKING THE FORM OF A DOPED CRYSTAL, SAID CRYSTAL DOPING BEING OF IONS SUFFICIENTLY DISTANT FROM ONE ANOTHER IN THE CRYSTAL LATTICE TO PREVENT SUBSTANTIAL COUPLING, SAID IONS BEING CHARACTERIZED BY AN INNER MAGNETIC QUANTUM NUMBER (J) OF AT LEAST 3/2 PERMITTING AT LEAST FOUR ENERGY LEVELS DESCRIPTIVE OF THE FINE STRUCTURE WITHOUT CREATING IN THE PRESENCE OF A MAGNETIC FIELD SUBSTANTIAL HYPERFINE STRUCTURE, SAID CRYSTAL BEING SELECTED SUCH THAT THE SPATIALLY REPETITIVE ELECTRIC FIELD PROVIDED THEREIN CAUSES A SEPARATION OF THE ENERGY LEVELS ABSENT A MAGNETIC FIELD BY AN ENERGY WHICH IS SUBSTANTIAL WITH RESPECT TO THE ENERGY CORRESPONDING TO A TRANSITION OF SIGNAL FREQUENCY, MEANS FOR APPLYING A MAGNETIC FIELD TO SAID ACTIVE MEMBER WHOSE STRENGTH AND DIRECTION IS SELECTED TO INDUCE ADDITIONAL SUBSTANTIAL SPLITTING OF THE ENERGY LEVELS TO CREATE FOUR ENERGY LEVELS EX-
References Cited (Backward Citations)
US2997581A
Cited
US2909654A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |