US2410424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Obstacle detection system
Assignee: RCA Corp
•
Filing: 1942-08-18
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Granted: 1946-11-05
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Expires: 1962-08-18
Abstract
No abstract record available.
Inventors
- 👤 Charles H Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:51
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/538; Y; Y10; Y10S; Y10S367/00; Y10S367/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-11-04 | 1950-05-06 | 1950-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-04 | 1954-05-06 | 1954-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-04 | 1958-05-06 | 1958-11-05 | $7700.00 | Window Closed / Lapsed |