US3414904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple reflector antenna
Assignee: Raytheon Co
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Filing: 1966-05-16
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Granted: 1968-12-03
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 James S Ajioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:24
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/18; H01Q19/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN ANTENNA COMPRISING: A PRIMARY REFLECTOR THE INTERSECTION OF WHICH WITH A GIVEN PLANE DEFINES ESSENTIALLY A FIRST PARABOLA HAVING A FOCAL POINT IN SAID PLANE, A SECONDARY REFLECTOR THE INTERSECTION OF WHICH WITH SAID PLANE DEFINES ESSENTIALLY S ECOND PARABOLAD HAVING A FOCAL POINT ESSENTIALLY COINCIDENT WITH THE FOCAL POINT OF SAID FIRST PARABOLA, A FEED REFLECTOR THE INTERSECTION OF WHICH WITH SAID PLANE DEFINES ESSENTIALLY A SEGMENT OF AN ELLIPSE HAVING FIRST AND SECOND FOCAL POINTS, SAID FIRST FOCAL POINT BEING ESSENTIALLY COINCIDENT WITH THE COMMON FOCAL POINTS
Claim 2
Dependent Claim
90 words
AN ANTENNA COMPRISING: A PRIMARY REFLECTOR THE INTERSECTION OF WHICH WITH A GIVEN PLANE DEFINES ESSENTIALLY A FIRST PARABOLA HAVING A FOCAL POINT IN SAID PLANE, A SECONDARY REFLECTOR THE INTERSECTION OF WHICH WITH SAID PLANE DEFINES ESSENTIALLY S ECOND PARABOLAD HAVING A FOCAL POINT ESSENTIALLY COINCIDENT WITH THE FOCAL POINT OF SAID FIRST PARABOLA, A FEED REFLECTOR THE INTERSECTION OF WHICH WITH SAID PLANE DEFINES ESSENTIALLY A SEGMENT OF AN ELLIPSE HAVING FIRST AND SECOND FOCAL POINTS, SAID FIRST FOCAL POINT BEING ESSENTIALLY COINCIDENT WITH THE COMMON FOCAL POINTS
References Cited (Backward Citations)
US3195137A
Cited
US3255455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |