Patent US6423057B1 successfully refreshed from Google Patents.
US3077565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave frequency discriminator
Assignee: Individual
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Filing: 1959-10-05
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Granted: 1963-02-12
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Expires: 1979-10-05
Abstract
No abstract record available.
Inventors
- 👤 Henry J Riblet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:48
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/18; H01P5/181; H01P5/182; H03; H03D; H03D9/00; H03D9/02; H03D9/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
MICROWAVE APPARATUS COMPRISING IN COMBINATION: A HYBRID JUNCTION OF THE TYPE HAVING AN APERTURED SECTION WHICH SUPPORTS TE10 AND TE20 MODES OF ELECTROMAGNETIC ENERGY PROPAGATION; A RESONATOR; AND MEANS IN ONE WALL OF SAID JUNCTION COUPLING SAID RESONATOR TO SAID APERTURED SECTION WHEREBY THE PHASE DIFFERENCE BETWEEN THE ENERGY IN THE TWO AFORESAID MODES IS VARIED BY SAID RESONATOR AS A FUNCTION OF FREQUENCY.
Claim 2
Dependent Claim
64 words
MICROWAVE APPARATUS COMPRISING IN COMBINATION: A HYBRID JUNCTION OF THE TYPE HAVING AN APERTURED SECTION WHICH SUPPORTS TE10 AND TE20 MODES OF ELECTROMAGNETIC ENERGY PROPAGATION; A RESONATOR; AND MEANS IN ONE WALL OF SAID JUNCTION COUPLING SAID RESONATOR TO SAID APERTURED SECTION WHEREBY THE PHASE DIFFERENCE BETWEEN THE ENERGY IN THE TWO AFORESAID MODES IS VARIED BY SAID RESONATOR AS A FUNCTION OF FREQUENCY.
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) | 1966-02-11 | 1966-08-13 | 1967-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-11 | 1970-08-13 | 1971-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-11 | 1974-08-13 | 1975-02-12 | $7700.00 | Window Closed / Lapsed |