US3021522A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radar range search system
Assignee: Individual
•
Filing: 1953-09-15
•
Granted: 1962-02-13
•
Expires: 1973-09-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph P Gleason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:29
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66; G01S13/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2628349A
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US2516356A
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US2639419A
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US2677758A
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US2536488A
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US2538028A
Cited
US2491029A
Cited
US2594916A
Cited
US2886810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-12 | 1965-08-14 | 1966-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-12 | 1969-08-14 | 1970-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-12 | 1973-08-14 | 1974-02-13 | $7700.00 | Window Closed / Lapsed |