US2545503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio object detection alarm
Assignee: Individual
•
Filing: 1945-05-30
•
Granted: 1951-03-20
•
Expires: 1965-05-30
Abstract
No abstract record available.
Inventors
- 👤 Tucker William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:41
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/52; G01S13/522; G01S13/524; G01S13/53; G01V; G01V3/00; G01V3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2206903A
Cited
US1495616A
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US2011392A
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US1844950A
Cited
US1981884A
Cited
US2086742A
Cited
US2272070A
Cited
US2379721A
Cited
US2393717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |