US2468070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid separation apparatus
Assignee: Individual
•
Filing: 1944-11-18
•
Granted: 1949-04-26
•
Expires: 1964-11-18
Abstract
No abstract record available.
Inventors
- 👤 James F Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:46
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0217
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1880185A
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US716703A
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GB131087A
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CH82596A
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US1412738A
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US1617737A
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US1928282A
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US1914282A
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FR792307A
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US2084958A
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US2273915A
Cited
US2319962A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-25 | 1952-10-25 | 1953-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-25 | 1956-10-25 | 1957-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-25 | 1960-10-25 | 1961-04-26 | $7700.00 | Window Closed / Lapsed |