US3475688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multichannel receiving system in which each channel's weight in the combined output depends on the rate of fading in said channels
Assignee: United States Department of the Army
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Filing: 1966-01-18
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Granted: 1969-10-28
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Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 Martin Masonson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:53
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0837; H04B7/0842; H04B7/0865
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2236497A
Cited
US2305917A
Cited
US2679554A
Cited
US2799734A
Cited
US3150327A
Cited
US3189842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |