US2439102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicator adjustment for sextants
Assignee: Individual
•
Filing: 1944-06-12
•
Granted: 1948-04-06
•
Expires: 1964-06-12
Abstract
No abstract record available.
Inventors
- 👤 Charles O Rothweiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:00
CPC Classifications
G; G01; G01C; G01C1/00; G01C1/08; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19502; Y10T74/19512; Y10T74/19623
Claims Analysis
Total Claims: 0
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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) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |