US2983919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tuning means for slot radiator
Assignee: RCA Corp
•
Filing: 1957-10-16
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Granted: 1961-05-09
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Expires: 1977-10-16
Abstract
No abstract record available.
Inventors
- 👤 Matti S O Siukola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:06
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/10; H01Q13/103; H01Q21/00; H01Q21/0006; H01Q21/0037; H01Q21/0043; H01Q21/0062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2512468A
Cited
US2507528A
Cited
US2629051A
Cited
GB600433A
Cited
US2763783A
Cited
US2658143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-08 | 1964-11-07 | 1965-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-08 | 1968-11-07 | 1969-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-08 | 1972-11-07 | 1973-05-09 | $7700.00 | Window Closed / Lapsed |