US2862658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for centrifugal separation of a mixture of solids and two liquids
Assignee: Alfa Laval Holdings Amsterdam AB
•
Filing: 1953-05-15
•
Granted: 1958-12-02
•
Expires: 1973-05-15
Abstract
No abstract record available.
Inventors
- 👤 Dahlgren Sven Alfred Bertil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:42
CPC Classifications
C; C11; C11B; C11B1/00; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0217; B01D21/00; B01D21/24; B01D21/2427; B01D21/26; B01D21/262; B01D21/30; B01D21/34; B04; B04B; B04B1/00; B04B1/20; B04B2001/2066; Y; Y10; Y10S; Y10S494/00; Y10S494/901
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-01 | 1962-06-02 | 1962-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-01 | 1966-06-02 | 1966-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-01 | 1970-06-02 | 1970-12-02 | $7700.00 | Window Closed / Lapsed |