US3238528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric wave phase control systems
Assignee: MA Com Inc
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Filing: 1963-02-19
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Granted: 1966-03-01
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Expires: 1983-02-19
Abstract
No abstract record available.
Inventors
- 👤 Marion E Hines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:07
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A STEERABLE DIRECTIONAL ANTENNA ARRAY SYSTEM COMPRISING: AN ARRAY OF ANTENNA UNITS, MEANS TO PROVIDE SEPARATE FIRST SIGNALS OF LIKE FREQUENCY AND PHASE FOR EACH OF SAID UNITS, MEANS COUPLED TO EACH OF SAID UNITS TO MULTIPLY THE FREQUENCY OF SAID FIRST SIGNAL THEREFOR AND THEREBY TO PROVIDE A SECOND HIGHER-FREQUENCY SIGNAL TO SAID UNIT, AND MEANS TO IMPOSE A SEPARATELY-CONTROLLABLE PHASE SHIFT UPON EACH OF SAID FIRST SIGNALS PRIOR TO FREQUENCY MULTIPLICATION THEREOF.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |