US3022889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrostatic separation of normally liquid materials
Assignee: International Minerals and Chemical Corp
•
Filing: 1959-01-19
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Granted: 1962-02-27
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Baron Ira M Le
- 👤 Gene L Samsel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:19
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; B; B01; B01D; B01D9/00; B01D9/005; B03; B03C; B03C7/00; C07C; C07C17/00; C07C17/38; C07C17/392; C07C7/00; C07C7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2723029A
Cited
US2696307A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |