US2596492A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna system
Assignee: RCA Corp
•
Filing: 1949-10-19
•
Granted: 1952-05-13
•
Expires: 1969-10-19
Abstract
No abstract record available.
Inventors
- 👤 Nils E Lindenblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:11
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/28; H01Q3/00; H01Q3/12; H01Q3/16; H01Q3/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB616711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |