Patent US2425018A successfully refreshed from Google Patents.
US2425018A
Expired / Lapsed
US
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Land mine exploder device
Assignee: Individual
•
Filing: 1944-01-21
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Granted: 1947-08-05
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Expires: 1964-01-21
Abstract
No abstract record available.
Inventors
- 👤 Allison R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:09
CPC Classifications
F; F41; F41H; F41H11/00; F41H11/12; F41H11/16; F41H11/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1891222A
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US1936788A
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US1893596A
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US2136315A
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US2146101A
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US2242808A
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US2334708A
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US2372023A
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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) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |