US2788937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifuge for separating solid components from liquids
Assignee: Alfa Laval Holdings Amsterdam AB
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Filing: 1955-08-02
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Granted: 1957-04-16
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Expires: 1975-08-02
Abstract
No abstract record available.
Inventors
- 👤 Weiland Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:49
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/04; B04B1/08; B04B11/00; B04B11/04
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) | 1960-04-15 | 1960-10-15 | 1961-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-15 | 1964-10-15 | 1965-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-15 | 1968-10-15 | 1969-04-16 | $7700.00 | Window Closed / Lapsed |