US3332039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three conductor coplanar serpentineline directional coupler
Assignee: Individual
•
Filing: 1965-01-15
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Granted: 1967-07-18
•
Expires: 1985-01-15
Abstract
No abstract record available.
Inventors
- 👤 Luis L Oh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:23
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/18; H01P5/183
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
A SERPENTINE-LINE QUARTER-WAVELENGTH DIRECTIONAL COUPLER COMPRISING: FIRST AND SECOND SUBSTANTIALLY PARALLEL CONDUCTIVE MEMBERS DEFINING GROUND PLANE SURFACES HAVING AN ELONGATED CAVITY SPACE THEREBETWEEN OF A LENGTH SEVERAL TIMES ITS THICKNESS AND OF A WIDTH EXCEEDING ITS THICKNESS; THREE SERPENTINE-LINE CONDUCTORS EACH ONE QUARTER-WAVELENGTH LONG DISPOSED IN MUTUALLY COPLANAR, MUTUALLY INSULATED, AND SUBSTANTIALLY PARALLEL RELATIONSHIP BETWEEN SAID SURFACES, SAID CONDUCTORS EXTENDING LENGTHWISE IN SAID CAVITY SPACE AND EACH HAVING MUTUALLY CO-PITCHED UNDULATIONS; AND ENERGY TRANSMISSION CONNECTOR MEANS COUPLED TO EACH END OF ONE OF SAID CONDUCTORS AND TO ONE END OF EACH OF THE OTHER TWO CONDUCTORS, WHEREBY A PORTION OF R-F ENERGY APPLIED TO SAID ONE CONDUCTOR WILL BE COUPLED TO EACH OF SAID OTHER TWO CONDUCTORS AND PROVIDE OUTPUT INFORMATION SIGNALS AT THE SAID CONNECTORS ON THE SAID ONE ENDS OF SAID OTHER TWO CONDUCTORS.
Claim 2
Dependent Claim
136 words
A SERPENTINE-LINE QUARTER-WAVELENGTH DIRECTIONAL COUPLER COMPRISING: FIRST AND SECOND SUBSTANTIALLY PARALLEL CONDUCTIVE MEMBERS DEFINING GROUND PLANE SURFACES HAVING AN ELONGATED CAVITY SPACE THEREBETWEEN OF A LENGTH SEVERAL TIMES ITS THICKNESS AND OF A WIDTH EXCEEDING ITS THICKNESS; THREE SERPENTINE-LINE CONDUCTORS EACH ONE QUARTER-WAVELENGTH LONG DISPOSED IN MUTUALLY COPLANAR, MUTUALLY INSULATED, AND SUBSTANTIALLY PARALLEL RELATIONSHIP BETWEEN SAID SURFACES, SAID CONDUCTORS EXTENDING LENGTHWISE IN SAID CAVITY SPACE AND EACH HAVING MUTUALLY CO-PITCHED UNDULATIONS; AND ENERGY TRANSMISSION CONNECTOR MEANS COUPLED TO EACH END OF ONE OF SAID CONDUCTORS AND TO ONE END OF EACH OF THE OTHER TWO CONDUCTORS, WHEREBY A PORTION OF R-F ENERGY APPLIED TO SAID ONE CONDUCTOR WILL BE COUPLED TO EACH OF SAID OTHER TWO CONDUCTORS AND PROVIDE OUTPUT INFORMATION SIGNALS AT THE SAID CONNECTORS ON THE SAID ONE ENDS OF SAID OTHER TWO CONDUCTORS.
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) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |