US2586894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio receiver
Assignee: United States, WAR, Secretary of
•
Filing: 1944-10-05
•
Granted: 1952-02-26
•
Expires: 1964-10-05
Abstract
No abstract record available.
Inventors
- 👤 Everard M Williams
- 👤 Jr Benjamin R Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:24
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2063534A
Cited
US2178074A
Cited
US2150553A
Cited
FR834082A
Cited
US2275460A
Cited
US2312203A
Cited
US2381940A
Cited
US2367907A
Cited
US2416346A
Cited
US2387685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-25 | 1955-08-27 | 1956-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-25 | 1959-08-27 | 1960-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-25 | 1963-08-27 | 1964-02-26 | $7700.00 | Window Closed / Lapsed |