Patent US2836816A successfully refreshed from Google Patents.
US2836816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Airborne pictorial navigation computer
Assignee: TDK Micronas GmbH
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Filing: 1954-05-11
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Granted: 1958-05-27
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Expires: 1974-05-11
Abstract
No abstract record available.
Inventors
- 👤 John L Allison
- 👤 Alexander Ben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:24
CPC Classifications
G; G01; G01C; G01C21/00; G01C21/20; G01C21/22; G06; G06E; G06E3/00; G06E3/001; G06G; G06G7/00; G06G7/48; G06G7/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2027527A
Cited
US2062003A
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US1889026A
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US2027530A
Cited
US2267715A
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US2307029A
Cited
US2399671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-26 | 1961-11-25 | 1962-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-26 | 1965-11-25 | 1966-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-26 | 1969-11-25 | 1970-05-27 | $7700.00 | Window Closed / Lapsed |