US2486781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Angle calculating apparatus for use with unstable platforms
Assignee: Arma Corp
•
Filing: 1945-06-21
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Granted: 1949-11-01
•
Expires: 1965-06-21
Abstract
No abstract record available.
Inventors
- 👤 Edmund D Gittens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:18
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/48; G06G7/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1937336A
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US1891397A
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US2080186A
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US2410638A
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US2311848A
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US2385952A
Cited
US2403152A
Cited
US2406836A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |