US2954841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal separator
Assignee: Jersey Production Research Co
•
Filing: 1956-11-16
•
Granted: 1960-10-04
•
Expires: 1976-11-16
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl E Reistle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:32
CPC Classifications
B; B01; B01D; B01D19/00; B01D19/0042; B01D19/0052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190122131A
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US945936A
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US1408736A
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GB239065A
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DE422641C
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GB298226A
Cited
GB324656A
Cited
US2216939A
Cited
FR1053943A
Cited
US2661076A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-10-04 | 1964-04-04 | 1964-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-10-04 | 1968-04-04 | 1968-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-10-04 | 1972-04-04 | 1972-10-04 | $7700.00 | Window Closed / Lapsed |