Patent US3392397A successfully refreshed from Google Patents.
US3392397A
Expired / Lapsed
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Cassegrain antenna for scanning with elliptically shaped beam
Assignee: General Precision Systems Inc
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Filing: 1966-02-15
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Granted: 1968-07-09
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Expires: 1986-02-15
Abstract
No abstract record available.
Inventors
- 👤 Schwartz Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/18; H01Q19/19; H01Q13/00; H01Q13/20; H01Q13/24; H01Q3/00; H01Q3/12; H01Q3/16; H01Q3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A MICROWAVE ENERGY ANTENNA FOR DIRECTIONALLY TRANSMITTING A CONICALLY SCANNED ELLIPTICALLY SHAPED BEAM OF MICROWAVE ENERGY INCLUDING; A MODIFIED PARABOLIC REFLECTOR HAVING THE APERTURE DIMENSION OF SAID REFLECTOR REDUCED IN THE AZIMUTH PLANE FOR PROVIDING A BEAM WIDTH EQUAL TO
Claim 2
Dependent Claim
40 words
A MICROWAVE ENERGY ANTENNA FOR DIRECTIONALLY TRANSMITTING A CONICALLY SCANNED ELLIPTICALLY SHAPED BEAM OF MICROWAVE ENERGY INCLUDING; A MODIFIED PARABOLIC REFLECTOR HAVING THE APERTURE DIMENSION OF SAID REFLECTOR REDUCED IN THE AZIMUTH PLANE FOR PROVIDING A BEAM WIDTH EQUAL TO
References Cited (Backward Citations)
US2531454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |