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US3028489A
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US
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Broadband radio relay system in which signals from adjacent repeaters are compared to control gain of each repeater
Assignee: AT&T Inc
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Filing: 1959-12-28
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Granted: 1962-04-03
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Expires: 1979-12-28
Abstract
No abstract record available.
Inventors
- 👤 Norman E Chasek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:18
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/155; H04B7/15528; H04B7/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2892930A
Cited
US2908760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |