US3256491A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for simultaneously coupling an r.f. signal to a plurality of antennas
Assignee: G C DEWEY CORP
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Filing: 1963-05-10
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Granted: 1966-06-14
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Expires: 1983-05-10
Abstract
No abstract record available.
Inventors
- 👤 Gordon C Dewey
- 👤 Sturm Norman
- 👤 George C Licence
- 👤 Julius R Insler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:27
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/48; H03H7/487; H01; H01Q; H01Q21/00; H01Q21/06
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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |