US2643576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three-dimensional map model accuracy comparator
Assignee: United States Department of the Army
•
Filing: 1951-03-30
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Granted: 1953-06-30
•
Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 Merriam Mylon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:46
CPC Classifications
G; G01; G01C; G01C11/00; B; B05; B05C; B05C17/00; B05C17/005; B05C17/00576
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1565413A
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GB254301A
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US1801200A
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US1997712A
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US1963128A
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US2072286A
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US2200594A
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US2448568A
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US2374981A
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US2464794A
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US2466161A
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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) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |