US2611127A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous wave navigation system
Assignee: Unisys Corp
•
Filing: 1947-10-28
•
Granted: 1952-09-16
•
Expires: 1967-10-28
Abstract
No abstract record available.
Inventors
- 👤 Palmer Winslow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:56
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2148267A
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US2144203A
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US2407287A
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US2408773A
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US2423305A
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US2417807A
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US2500200A
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US2530902A
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US2513315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-16 | 1956-03-17 | 1956-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-16 | 1960-03-17 | 1960-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-16 | 1964-03-17 | 1964-09-16 | $7700.00 | Window Closed / Lapsed |