US2582374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Map making apparatus
Assignee: Individual
•
Filing: 1945-08-17
•
Granted: 1952-01-15
•
Expires: 1965-08-17
Abstract
No abstract record available.
Inventors
- 👤 John L Dalke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:27
CPC Classifications
G; G01; G01C; G01C15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US129761A
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US226028A
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US1308580A
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US1727460A
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US709313A
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GB190814598A
Cited
US1123795A
Cited
US1401242A
Cited
US1448931A
Cited
US1427267A
Cited
US1701582A
Cited
US1704250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |