Patent US3267472A successfully refreshed from Google Patents.
US3267472A
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Variable aperture antenna system
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1960-07-20
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Granted: 1966-08-16
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Expires: 1980-07-20
Abstract
No abstract record available.
Inventors
- 👤 Fink Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:36
CPC Classifications
H; H01; H01Q; H01Q25/00; H01Q25/002; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/17; H01Q19/175; H01Q3/00; H01Q3/26; H01Q3/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
71 words
A VARIABLE APERTURE ANTENNA COMPRISING AN ARRAY OF ANTENNA UNITS, POWER DIVIDING MEANS FOR SELECTIVELY RECEIVING FROM AND TRANSMITTING ENERGY TO SAID UNITS, SAID POWER DIVIDING MEANS BEING ADJUSTABLE TO VARIABLE APPORTION THE ENERGY AND WHILE MAINTAINING THE ATTENUATION OF SAID ENERGY AND WHILE MAINTAINING THE PHASE SUBSTANTIALLY CONSTANT, THEREBY TO VARY THE BEAM PATTERN PRODUCED BY THE ARRAY BY VARYING THE AMPLITUDE DISTRIBUTION OF THE ENERGY AMONG THE ANTENNA UNITS.
References Cited (Backward Citations)
US1370735A
Cited
US1808869A
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US1922115A
Cited
US2784381A
Cited
US2948863A
Cited
US2878472A
Cited
US3085204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |