US2531466A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stereoscopic radio location device
Assignee: Individual
•
Filing: 1944-08-05
•
Granted: 1950-11-28
•
Expires: 1964-08-05
Abstract
No abstract record available.
Inventors
- 👤 Richard H Ranger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:05
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1743952A
Cited
US2227598A
Cited
US2209191A
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US2189549A
Cited
US2333322A
Cited
US2359703A
Cited
US2408848A
Cited
US2426979A
Cited
US2434897A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-27 | 1954-05-29 | 1954-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-27 | 1958-05-29 | 1958-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-27 | 1962-05-29 | 1962-11-28 | $7700.00 | Window Closed / Lapsed |