Patent US5286201A successfully refreshed from Google Patents.
Patent US3074033A successfully refreshed from Google Patents.
US3074033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave frequency separator
Assignee: Unisys Corp
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Filing: 1957-02-26
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Granted: 1963-01-15
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Expires: 1977-02-26
Abstract
No abstract record available.
Inventors
- 👤 Smith P Gene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:39
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/213; H01P1/2138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A MICROWAVE FREQUENCY SEPARATOR FOR SEPARATING TWO WAVES OF DIFFERENT PREDETERMINED FREQUENCIES SUPPLIED FROM A MICROWAVE ENERGY SOURCE, SAID SEPARATOR COMPRISING A CLOSED LOOP WAVE TRANSMISSION LINE, SAID TRANSMISSION LINE BEING SUBSTANTIALLY AN INTEGRAL NUMBER OF WAVELENGTHS LONG AT A FIRST ONE OF SAID FREQUENCIES, A SECOND WAVE TRANSMISSION LINE ADAPTED TO BE CONNECTED AT ONE END TO THE SOURCE AND AT THE OPPOSITE END TO A FIRST OUTPUT TERMINAL, A DIRECTIONAL COUPLING MEANS FOR COUPLING SAID CLOSED LOOP TO SAID SECOND TRANSMISSION LINE AT A REGION INTERMEDIATE THE ENDS OF SAID SECOND TRANSMISSION LINE, A THIRD WAVE TRANSMISSION LINE HAVING ONE END CONNECTED TO A SECOND OUTPUT TERMINAL, AND COUPLING MEANS FOR COUPLING SAID CLOSED LOOP TO SAID THIRD TRANSMISSION LINE AT A REGION INTERMEDIATE THE ENDS OF SAID THIRD TRANSMISSION LINE, AT LEAST ONE OF SAID COUPLING MEANS FOR COUPLING SAID CLOSED LOOP TO A RESPECTIVE ONE OF SAID SECOND OR THIRD TRANSMISSION LINES HAVING A DEGREE OF COUPLING LESS THAN ONE-HALF.
Claim 2
Dependent Claim
164 words
A MICROWAVE FREQUENCY SEPARATOR FOR SEPARATING TWO WAVES OF DIFFERENT PREDETERMINED FREQUENCIES SUPPLIED FROM A MICROWAVE ENERGY SOURCE, SAID SEPARATOR COMPRISING A CLOSED LOOP WAVE TRANSMISSION LINE, SAID TRANSMISSION LINE BEING SUBSTANTIALLY AN INTEGRAL NUMBER OF WAVELENGTHS LONG AT A FIRST ONE OF SAID FREQUENCIES, A SECOND WAVE TRANSMISSION LINE ADAPTED TO BE CONNECTED AT ONE END TO THE SOURCE AND AT THE OPPOSITE END TO A FIRST OUTPUT TERMINAL, A DIRECTIONAL COUPLING MEANS FOR COUPLING SAID CLOSED LOOP TO SAID SECOND TRANSMISSION LINE AT A REGION INTERMEDIATE THE ENDS OF SAID SECOND TRANSMISSION LINE, A THIRD WAVE TRANSMISSION LINE HAVING ONE END CONNECTED TO A SECOND OUTPUT TERMINAL, AND COUPLING MEANS FOR COUPLING SAID CLOSED LOOP TO SAID THIRD TRANSMISSION LINE AT A REGION INTERMEDIATE THE ENDS OF SAID THIRD TRANSMISSION LINE, AT LEAST ONE OF SAID COUPLING MEANS FOR COUPLING SAID CLOSED LOOP TO A RESPECTIVE ONE OF SAID SECOND OR THIRD TRANSMISSION LINES HAVING A DEGREE OF COUPLING LESS THAN ONE-HALF.
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |