US2230386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of solids from liquids
Assignee: AMERICAN CENTRIFUGAL Corp
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Filing: 1937-08-12
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Granted: 1941-02-04
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Expires: 1957-08-12
Abstract
No abstract record available.
Inventors
- 👤 Joseph S Pecker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:30
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0018; B01D21/0039; B01D21/0048; B01D21/02; B01D21/24; B01D21/2405; B01D21/2427; B01D21/2444; B01D2221/00; B01D2221/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1944-02-04 | 1944-08-05 | 1945-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-04 | 1948-08-05 | 1949-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-04 | 1952-08-05 | 1953-02-04 | $7700.00 | Window Closed / Lapsed |