Patent US2525020A successfully refreshed from Google Patents.
US2525020A
Expired / Lapsed
US
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Explosive testing apparatus
Assignee: Federal Cartridge Corp
•
Filing: 1945-01-20
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Granted: 1950-10-10
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Expires: 1965-01-20
Abstract
No abstract record available.
Inventors
- 👤 Jarlais Philip De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:57
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/50; G01N25/54; F; F42; F42B; F42B35/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1716775A
Cited
US2095124A
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US2087598A
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US2171861A
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US2199394A
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US2300361A
Cited
US2402580A
Cited
US2323301A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-09 | 1954-04-10 | 1954-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-09 | 1958-04-10 | 1958-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-09 | 1962-04-10 | 1962-10-10 | $7700.00 | Window Closed / Lapsed |