US2395351A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Navigating device
Assignee: Individual
•
Filing: 1942-07-30
•
Granted: 1946-02-19
•
Expires: 1962-07-30
Abstract
No abstract record available.
Inventors
- 👤 Marion E Sohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:19
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/20; G01C21/22; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18272; Y10T74/19; Y10T74/19555
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-02-18 | 1949-08-20 | 1950-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-02-18 | 1953-08-20 | 1954-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-02-18 | 1957-08-20 | 1958-02-19 | $7700.00 | Window Closed / Lapsed |