US2522562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna system
Assignee: RCA Corp
•
Filing: 1945-04-21
•
Granted: 1950-09-19
•
Expires: 1965-04-21
Abstract
No abstract record available.
Inventors
- 👤 Blitz Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:29
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/24; H01Q25/00; H01Q25/001; H01Q3/00; H01Q3/12; H01Q3/16; H01Q3/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE582007C
Cited
DE642385C
Cited
US2206923A
Cited
US2042302A
Cited
US2364371A
Cited
US2357313A
Cited
US2423648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |