US2419552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio antenna
Assignee: STC PLC
•
Filing: 1943-06-12
•
Granted: 1947-04-29
•
Expires: 1963-06-12
Abstract
No abstract record available.
Inventors
- 👤 Himmel Leon
- 👤 Fuchs Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:29
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1918180A
Cited
US2131108A
Cited
US2186554A
Cited
GB518829A
Cited
US2290800A
Cited
US2287220A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |