Patent US2656532A successfully refreshed from Google Patents.
US2656532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar system
Assignee: AT&T Inc
•
Filing: 1946-10-23
•
Granted: 1953-10-20
•
Expires: 1966-10-23
Abstract
No abstract record available.
Inventors
- 👤 Elmo E Crump
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:32
CPC Classifications
F; F41; F41G; F41G5/00; F41G5/08; G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/422
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2083242A
Cited
US2412702A
Cited
GB555052A
Cited
US2409448A
Cited
US2399426A
Cited
US2449976A
Cited
US2412703A
Cited
US2541030A
Cited
US2426218A
Cited
US2514828A
Cited
US2508358A
Cited
US2428351A
Cited
US2422361A
Cited
US2408848A
Cited
US2419567A
Cited
US2501748A
Cited
US2426979A
Cited
US2446024A
Cited
US2540121A
Cited
US2543753A
Cited
US2417248A
Cited
US2437286A
Cited
US2403562A
Cited
US2470939A
Cited
US2405930A
Cited
US2432330A
Cited
US2513962A
Cited
US2471264A
Cited
US2483432A
Cited
US2468714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-19 | 1957-04-20 | 1957-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-19 | 1961-04-20 | 1961-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-19 | 1965-04-20 | 1965-10-20 | $7700.00 | Window Closed / Lapsed |