Patent US3206693A successfully refreshed from Google Patents.
US3206693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubidium frequency standard acquisition system
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1963-12-31
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Granted: 1965-09-14
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Expires: 1983-12-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Joseph J Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:37
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
IN COMBINATION, OPTICAL MEANS FOR GENERATING AN OPTICAL PUMPING LIGHT BEAM HAVING ENERGY IN PUMPING AND DEPUMPING FREQUENCIES OF ELECTROMAGNETIC RADIATION, MEANS FOR GENERATING A MICROWAVE ENERGY SIGNAL HAVING A RANGE OF FREQUENCIES INCLUDING THOSE GENERATED BY SAID OPTICAL MEANS, MEANS FOR MODULATING SAID MICROWAVE ENERGY SIGNAL WITH A FIRST MODULTION SIGNAL, MEANS FOR OPTICALLY DETECTING SAID FIRST MODULATION SIGNAL, SYNCHRONOUS DETECTING MEANS RESPONSIVE TO SAID FIRST MODULATION SIGNAL AND SAID DETECTED MODULATION SIGNAL FOR FINE CONTROLLING THE FREQUENCY OF SAID MICROWAVE ENERGY, SWEEP GENERATING MEANS FOR COARSE CONTROLLING THE FREQUENCY OF SAID MICROWAVE ENERGY AND IMPULSING SAID OPTICAL MEANS TO INSURE THE GENERATION OF SAID LIGHT BEAM,
Claim 2
Dependent Claim
108 words
IN COMBINATION, OPTICAL MEANS FOR GENERATING AN OPTICAL PUMPING LIGHT BEAM HAVING ENERGY IN PUMPING AND DEPUMPING FREQUENCIES OF ELECTROMAGNETIC RADIATION, MEANS FOR GENERATING A MICROWAVE ENERGY SIGNAL HAVING A RANGE OF FREQUENCIES INCLUDING THOSE GENERATED BY SAID OPTICAL MEANS, MEANS FOR MODULATING SAID MICROWAVE ENERGY SIGNAL WITH A FIRST MODULTION SIGNAL, MEANS FOR OPTICALLY DETECTING SAID FIRST MODULATION SIGNAL, SYNCHRONOUS DETECTING MEANS RESPONSIVE TO SAID FIRST MODULATION SIGNAL AND SAID DETECTED MODULATION SIGNAL FOR FINE CONTROLLING THE FREQUENCY OF SAID MICROWAVE ENERGY, SWEEP GENERATING MEANS FOR COARSE CONTROLLING THE FREQUENCY OF SAID MICROWAVE ENERGY AND IMPULSING SAID OPTICAL MEANS TO INSURE THE GENERATION OF SAID LIGHT BEAM,
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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |