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US3389078A
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Liquid separation through a permeable membrane in droplet form
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1966-01-20
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Granted: 1968-06-18
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Expires: 1986-01-20
Abstract
No abstract record available.
Inventors
- 👤 Eugene R Elzinga
- 👤 Norman N Li
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:16
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/22; B; B01; B01D; B01D61/00; B01D61/38; B01D61/40; C10G; C10G31/00; C10G31/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1520953A
Cited
US3168585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-18 | 1971-12-18 | 1972-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-18 | 1975-12-18 | 1976-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-18 | 1979-12-18 | 1980-06-18 | $7700.00 | Window Closed / Lapsed |