Patent US2878891A successfully refreshed from Google Patents.
US2878891A
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Loop separator for gases and solids
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1953-10-05
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Granted: 1959-03-24
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Expires: 1973-10-05
Abstract
No abstract record available.
Inventors
- 👤 James F Ross
- 👤 Frank G Turpin
- 👤 Joseph A Polack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:24
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/12; B01D45/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2602019A
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US2489618A
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US2485315A
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US2737479A
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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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |