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US2458035A
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Gravity liquid separator
Assignee: Domaniale Mijn Mij N V
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Filing: 1945-09-18
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Granted: 1949-01-04
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Expires: 1965-09-18
Abstract
No abstract record available.
Inventors
- 👤 Klaas F Tromp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:20
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/36; B03B5/40; B03B11/00; B03B2005/405; B03B2011/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1215345A
Cited
US2139047A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-01-04 | 1952-07-05 | 1953-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-01-04 | 1956-07-05 | 1957-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-01-04 | 1960-07-05 | 1961-01-04 | $7700.00 | Window Closed / Lapsed |