Patent US3289090A successfully refreshed from Google Patents.
US3289090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double quantum phonon maser amplifier
Assignee: —
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Filing: —
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Granted: 1966-11-29
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Expires: 1983-11-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:38
CPC Classifications
H; H01; H01S; H01S1/00; H01S1/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A WAVE AMPLIFIER COMPRISING MEANS FOR GENERATING AN ACOUSTICAL SIGNAL PULSE HAVING A FREQUENCY *, AN ACOUSTIC PROPAGATING MEDIUM COUPLED TO SAID TRANSDUCER, IONS HAVING A LARGE SPIN PHONON COUPLING INCORPORATED IN SAID PROPAGATING MEDIUM, MEANS FOR EMPLOYING THE METHOD OF ADIABATIC FAST PASSAGE TO INVERT THE POPULATIONS OF SAID IONS IN SAID PROPAGATING MEDIUM, THE R.F. FIELD EMPLOYED IN SAID ADIABATIC FAST PASSAGE METHOD PROVIDING A FREQUENCY W, THE SUM OF SAID FREQUENCIES $ AND W BEING EQUAL TO THE RESONANT FREQUENCY OF SAID INVERTED ION POPULATION.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |