US3419145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation tank and method
Assignee: Idreco USA Ltd
•
Filing: 1966-06-10
•
Granted: 1968-12-31
•
Expires: 1986-06-10
Abstract
No abstract record available.
Inventors
- 👤 Celis Joseph W De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:26
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0211; B01D17/0214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US655045A
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US1116903A
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US1860819A
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US2730190A
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US3147221A
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US3195727A
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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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |