US2460789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fault indicator for radio relaying systems
Assignee: RCA Corp
•
Filing: 1946-03-15
•
Granted: 1949-02-01
•
Expires: 1966-03-15
Abstract
No abstract record available.
Inventors
- 👤 Leland E Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:46
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/14; H04B7/15; H04B7/155; H04B7/165; H01; H01J; H01J25/00; H01J25/68; H03; H03C; H03C3/00; H03C3/30
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-01 | 1952-08-02 | 1953-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-01 | 1956-08-02 | 1957-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-01 | 1960-08-02 | 1961-02-01 | $7700.00 | Window Closed / Lapsed |