US2613071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigation system, including acceleration integrating means
Assignee: Individual
•
Filing: 1947-06-19
•
Granted: 1952-10-07
•
Expires: 1967-06-19
Abstract
No abstract record available.
Inventors
- 👤 Paul G Hansel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:44
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/20; G01C21/22; G01C21/10; G01C21/12; G01C21/16; G01C21/183; G01C21/188
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2455939A
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US1728904A
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GB411124A
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US2266449A
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US2385334A
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US2328985A
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US2371626A
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US2454782A
Cited
US2428800A
Cited
US2447517A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-07 | 1956-04-07 | 1956-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-07 | 1960-04-07 | 1960-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-07 | 1964-04-07 | 1964-10-07 | $7700.00 | Window Closed / Lapsed |