Patent US2791769A successfully refreshed from Google Patents.
US2791769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dual slot wide band antenna
Assignee: RCA Corp
•
Filing: 1950-09-27
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Granted: 1957-05-07
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Expires: 1970-09-27
Abstract
No abstract record available.
Inventors
- 👤 Lindenblad Nils Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:57
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/10
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |