US2925382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of granular solids from liquid-solids contacting systems
Assignee: ExxonMobil Oil Corp
•
Filing: 1956-10-17
•
Granted: 1960-02-16
•
Expires: 1976-10-17
Abstract
No abstract record available.
Inventors
- 👤 Eric R Kent
- 👤 Grady L Payne
- 👤 John J Wise
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:24
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/0015
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2684932A
Cited
US2631727A
Cited
US2690955A
Cited
US2701232A
Cited
US2745888A
Cited
US2783189A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |