Patent US2516569A successfully refreshed from Google Patents.
US2516569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Geographical position locator for maps, plats, and charts
Assignee: Individual
•
Filing: 1945-06-15
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Granted: 1950-07-25
•
Expires: 1965-06-15
Abstract
No abstract record available.
Inventors
- 👤 Elizabeth C Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:16
CPC Classifications
G; G09; G09B; G09B29/00; G09B29/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US805216A
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US832871A
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US1245311A
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US1276657A
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US1389293A
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GB203455A
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US1710555A
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FR747434A
Cited
US1993589A
Cited
US2242735A
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US2393228A
Cited
US2411300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |