US3215957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable polarization for microwaves
Assignee: Bendix Corp
•
Filing: 1962-03-05
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Granted: 1965-11-02
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 Henry P Dantzig
- 👤 Alvin W Moeller
- 👤 Jr Edgar G Shelor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:03
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/165; H01P1/17; H01P1/172
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A MICROWAVE POLARIZER COMPRISING: A FIRST CIRCULAR WAVEGUIDE SECTION; MEANS FOR LAUNCHING PLANE POLARIZED MICROWAVES INTO SAID FIRST WAVEGUIDE SECTION; A SECOND CIRCULAR WAVEGUIDE SECTION RECEIVING PLANE POLARIZED WAVES FROM SAID FIRST WAVEGUIDE SECTION AND MOUNTED FOR ROATION RELATIVE THERETO; A HALF-WAVE PLATE IN SAID SECOND WAVEGUIDE SECTION; FIRST MEANS FOR ROTATING SAID SECOND WAVEGUIDE SECTION RELATIVE TO SAID FIRST WAVEGUIDE SECTION A SELECTED AMOUNT WHEREBY THE POLARIZATION PLANE OF WAVES EMERGENT FROM SAID SECOND WAVEGUIDE SECTION CAN BE ROTATED TO ANY DESIRED ANGLE WITH RESPECT TO THE POLARIZATION PLANE OF WAVES IN SAID FIRST WAVEGUIDE SECTION; A THIRD CIRCULAR WAVEGUIDE SECTION RECEIVING PLANE POLARIZED WAVES FROM SAID SECOND WAVEGUIDE SECTION AND MOUNTED FOR ROTATION RELATIVE THERETO; A QUARTER-WAVE PLATE IN SAID THIRD WAVEGUIDE SECTION; AND
Claim 2
Dependent Claim
126 words
A MICROWAVE POLARIZER COMPRISING: A FIRST CIRCULAR WAVEGUIDE SECTION; MEANS FOR LAUNCHING PLANE POLARIZED MICROWAVES INTO SAID FIRST WAVEGUIDE SECTION; A SECOND CIRCULAR WAVEGUIDE SECTION RECEIVING PLANE POLARIZED WAVES FROM SAID FIRST WAVEGUIDE SECTION AND MOUNTED FOR ROATION RELATIVE THERETO; A HALF-WAVE PLATE IN SAID SECOND WAVEGUIDE SECTION; FIRST MEANS FOR ROTATING SAID SECOND WAVEGUIDE SECTION RELATIVE TO SAID FIRST WAVEGUIDE SECTION A SELECTED AMOUNT WHEREBY THE POLARIZATION PLANE OF WAVES EMERGENT FROM SAID SECOND WAVEGUIDE SECTION CAN BE ROTATED TO ANY DESIRED ANGLE WITH RESPECT TO THE POLARIZATION PLANE OF WAVES IN SAID FIRST WAVEGUIDE SECTION; A THIRD CIRCULAR WAVEGUIDE SECTION RECEIVING PLANE POLARIZED WAVES FROM SAID SECOND WAVEGUIDE SECTION AND MOUNTED FOR ROTATION RELATIVE THERETO; A QUARTER-WAVE PLATE IN SAID THIRD WAVEGUIDE SECTION; AND
References Cited (Backward Citations)
US2438119A
Cited
US2607849A
Cited
GB732915A
Cited
US2787765A
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US2858512A
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US2930040A
Cited
GB818447A
Cited
US3089137A
Cited
US3089104A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |