Patent US2662687A successfully refreshed from Google Patents.
US2662687A
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US
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Centrifugal separator for cold milk products and the like
Assignee: De Laval Separator Co
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Filing: 1950-04-01
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Granted: 1953-12-15
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Expires: 1970-04-01
Abstract
No abstract record available.
Inventors
- 👤 Hubert M Spross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:38
CPC Classifications
B; B04; B04B; B04B1/00; B04B1/04; B04B1/08; B04B11/00; B04B11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1427486A
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US1945336A
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US1916870A
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US2089122A
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US2089043A
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GB476823A
Cited
US2173580A
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US2222727A
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 |