US2628349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Homing system
Assignee: Individual
•
Filing: 1944-09-13
•
Granted: 1953-02-10
•
Expires: 1964-09-13
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Nightenhelser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:46
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/74; G01S13/76; G01S13/78; G01S13/785
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1806577A
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US2495753A
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US2515178A
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US2433667A
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US2467208A
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US2466711A
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US2459811A
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US2543072A
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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) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |