US2337291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for separating the constituents of petroleum emulsions
Assignee: ExxonMobil Oil Corp
•
Filing: 1939-10-17
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Granted: 1943-12-21
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Expires: 1959-10-17
Abstract
No abstract record available.
Inventors
- 👤 Gale L Adams
- 👤 Roy G Barlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:32
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/02; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-12-20 | 1947-06-21 | 1947-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-12-20 | 1951-06-21 | 1951-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-12-20 | 1955-06-21 | 1955-12-21 | $7700.00 | Window Closed / Lapsed |