US3382465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equalizers comprising interconnected directional couplers
Assignee: Lockheed Martin Corp
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Filing: 1964-03-20
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Granted: 1968-05-07
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Expires: 1984-03-20
Abstract
No abstract record available.
Inventors
- 👤 Robbins Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:40
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/02; H01P3/08; H01P3/085; H01P1/00; H01P1/20; H01P1/201; H01P1/203; H01P1/20327; H01P1/20354; H01P1/20372; H01P1/20381; H01P5/00; H01P5/12; H01P5/16; H04; H04B; H04B3/00; H04B3/02; H04B3/04; H04B3/14; H04B3/143; H04B3/144
Claims Analysis
Total Claims: 0
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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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |