US2490108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for continuously separating solids of explosive from liquid
Assignee: Olin Industries Inc
•
Filing: 1942-03-24
•
Granted: 1949-12-06
•
Expires: 1962-03-24
Abstract
No abstract record available.
Inventors
- 👤 Lewis E Walkup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:50
CPC Classifications
B; B04; B04B; B04B3/00; C; C06; C06B; C06B21/00; C06B21/0091
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US328190A
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US541573A
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US931749A
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US710607A
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US781926A
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US1545832A
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US1963712A
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US2119644A
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US2292469A
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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) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |