US2598934A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator having flow-directing and self-sealing discharge means
Assignee: Roberts and Schaefer Co
•
Filing: 1948-06-15
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Granted: 1952-06-03
•
Expires: 1968-06-15
Abstract
No abstract record available.
Inventors
- 👤 Carl V Ore
- 👤 Nicholson John A Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:18
CPC Classifications
B; B03; B03B; B03B4/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2273296A
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US1682820A
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US2086584A
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US2149744A
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US2261278A
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US2303367A
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US2334337A
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US2374865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-03 | 1955-12-03 | 1956-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-03 | 1959-12-03 | 1960-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-03 | 1963-12-03 | 1964-06-03 | $7700.00 | Window Closed / Lapsed |