US2586743A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system for radar navigation
Assignee: Individual
•
Filing: 1945-11-14
•
Granted: 1952-02-19
•
Expires: 1965-11-14
Abstract
No abstract record available.
Inventors
- 👤 Russell W Thresher
- 👤 Ralzemond B Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:46
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/02; G01S7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2027527A
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US2061378A
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US2183634A
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US2279151A
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FR856256A
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US2316550A
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US2299083A
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US2395966A
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US2415424A
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US2428427A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |