US3004153A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for use with a plurality of antennas
Assignee: Individual
•
Filing: 1957-01-04
•
Granted: 1961-10-10
•
Expires: 1977-01-04
Abstract
No abstract record available.
Inventors
- 👤 Alford Andrew
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:39
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1819589A
Cited
US1877858A
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US2403500A
Cited
US2416336A
Cited
US2462893A
Cited
US2587590A
Cited
GB674874A
Cited
US2618747A
Cited
US2617885A
Cited
US2640915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-09 | 1965-04-10 | 1965-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-09 | 1969-04-10 | 1969-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-09 | 1973-04-10 | 1973-10-10 | $7700.00 | Window Closed / Lapsed |