US2651415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil separator
Assignee: Bethlehem Steel Corp
•
Filing: 1947-05-01
•
Granted: 1953-09-08
•
Expires: 1967-05-01
Abstract
No abstract record available.
Inventors
- 👤 Worthen Eugene Porter
- 👤 Charles S L Robinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211; B01D17/0214; B63; B63J; B63J4/00; B63J4/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320340A
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US1134419A
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US1516132A
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GB218462A
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US1698002A
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US1613507A
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US1943367A
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US1958010A
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US2025883A
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US2119348A
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US2104050A
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GB473108A
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US2232709A
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US2294697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |