US3392353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maser intracavity phase modulator
Assignee: AT&T Inc
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Filing: 1964-06-11
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Granted: 1968-07-09
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Expires: 1984-06-11
Abstract
No abstract record available.
Inventors
- 👤 Stewart E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:32
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/10; H01S3/106; H01S3/107; H01S3/1075
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A MODULATOR COMPRISING AN ACTIVE MEDIUM DISPOSED WITHIN A CAVITY FOR THE GENERATION OF A BEAM OF ELECTROMAGNETIC WAVE ENERGY. POLARIZING MEANS WITHIN SAID CAVITY FOR POLARIZING SAID BEAM IN A FIRST DIRECTION; MODULATING MEANS WITHIN SAID CAVITY FOR PHASE MODULATING A PORTION OF THE WAVE ENERGY WITHIN SAID BEAM COMPRISING: FIRST POLARIZATION CONVERTING MEANS FOR INDUCING A FIRST WAVE COMPONENT OF CONSTANT AMPLITUDE POLARIZED IN A SECOND DIRECTION PERPENDICULAR TO SAID FIRST DIRECTION; MEANS FOR INTRODUCING A NINETY DEGREE TIME-PHASE SHIFT BETWEEN ORTHOGONALLY DIRECTED WAVE COMPONENTS; SECOND POLARIZATION CONVERTING MEANS FOR INDUCING A SECOND WAVE COMPONENT OF VARYING AMPLITUDE POLARIZED IN SAID SECOND DIRECTION; AND POLARIZATION SELECTIVE MEANS FOR EXTRACTING SAID FIRST AND SECOND WAVE COMPONENTS FROM SAID CAVITY.
Claim 2
Dependent Claim
120 words
A MODULATOR COMPRISING AN ACTIVE MEDIUM DISPOSED WITHIN A CAVITY FOR THE GENERATION OF A BEAM OF ELECTROMAGNETIC WAVE ENERGY. POLARIZING MEANS WITHIN SAID CAVITY FOR POLARIZING SAID BEAM IN A FIRST DIRECTION; MODULATING MEANS WITHIN SAID CAVITY FOR PHASE MODULATING A PORTION OF THE WAVE ENERGY WITHIN SAID BEAM COMPRISING: FIRST POLARIZATION CONVERTING MEANS FOR INDUCING A FIRST WAVE COMPONENT OF CONSTANT AMPLITUDE POLARIZED IN A SECOND DIRECTION PERPENDICULAR TO SAID FIRST DIRECTION; MEANS FOR INTRODUCING A NINETY DEGREE TIME-PHASE SHIFT BETWEEN ORTHOGONALLY DIRECTED WAVE COMPONENTS; SECOND POLARIZATION CONVERTING MEANS FOR INDUCING A SECOND WAVE COMPONENT OF VARYING AMPLITUDE POLARIZED IN SAID SECOND DIRECTION; AND POLARIZATION SELECTIVE MEANS FOR EXTRACTING SAID FIRST AND SECOND WAVE COMPONENTS FROM SAID CAVITY.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |