Patent US2646562A successfully refreshed from Google Patents.
US2646562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio object-location system for moving target indication
Assignee: United States, WAR, Secretary of
•
Filing: 1945-05-17
•
Granted: 1953-07-21
•
Expires: 1965-05-17
Abstract
No abstract record available.
Inventors
- 👤 Alfred G Emslie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:28
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/522; G01S13/524
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB497147A
Cited
US2253589A
Cited
US2209064A
Cited
US2406316A
Cited
US2517549A
Cited
US2345932A
Cited
US2450945A
Cited
US2435615A
Cited
US2455639A
Cited
US2535274A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-20 | 1957-01-19 | 1957-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-20 | 1961-01-19 | 1961-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-20 | 1965-01-19 | 1965-07-21 | $7700.00 | Window Closed / Lapsed |