US2477647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna
Assignee: STC PLC
•
Filing: 1945-01-29
•
Granted: 1949-08-02
•
Expires: 1965-01-29
Abstract
No abstract record available.
Inventors
- 👤 Sidney B Pickles
- 👤 Anthony M Casabona
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:48
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/02; H01Q19/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1927393A
Cited
GB416296A
Cited
US2183784A
Cited
US2086976A
Cited
US2187014A
Cited
US2287220A
Cited
US2298449A
Cited
US2341558A
Cited
US2338564A
Cited
US2352977A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |