Patent US2662610A successfully refreshed from Google Patents.
US2662610A
Expired / Lapsed
US
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Apparatus for centrifugal separation of suspended particles
Assignee: Individual
•
Filing: 1950-08-04
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Granted: 1953-12-15
•
Expires: 1970-08-04
Abstract
No abstract record available.
Inventors
- 👤 Oswald X Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:28
CPC Classifications
B; B04; B04C; B04C3/00; B04C3/06; B04C3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1735298A
Cited
US2082242A
Cited
US1970077A
Cited
GB402693A
Cited
US2201301A
Cited
FR891452A
Cited
GB580936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |