US2659883A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio range tracking system
Assignee: Individual
•
Filing: 1946-03-29
•
Granted: 1953-11-17
•
Expires: 1966-03-29
Abstract
No abstract record available.
Inventors
- 👤 Eugene V Haake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:51
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2412702A
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US2405238A
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US2408048A
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US2427219A
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US2408742A
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US2419239A
Cited
US2403562A
Cited
US2480208A
Cited
US2508565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |