US3025520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positioning determining device
Assignee: General Dynamics Corp
•
Filing: 1955-11-21
•
Granted: 1962-03-13
•
Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 Robert V Werner
- 👤 Robert C Weaver
- 👤 Jr James W Crooks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:02
CPC Classifications
G; G01; G01S; G01S5/00; G01S5/02; G01S5/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1406996A
Cited
US2198113A
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US2248727A
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US2406953A
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US2472129A
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US2413637A
Cited
US2581438A
Cited
US2608685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |