Patent US2795635A successfully refreshed from Google Patents.
US2795635A
Expired / Lapsed
US
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Centrifuge
Assignee: Phillips Petroleum Co
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Filing: 1953-08-28
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Granted: 1957-06-11
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Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 John A Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:41
CPC Classifications
C; C07; C07C; C07C15/00; C07C15/02; C07C15/067; C07C15/08; B; B04; B04B; B04B1/00; B04B1/20; B04B5/00; B04B5/08; C07C7/00; C07C7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A PROCESS OF SEPARATING A MIXTURE OF MATERIAL HAVING DIFFERENT MELTING POINTS COMPRISING FORMING A SLURRY OF SOLIDIFIABLE COMPONENTS IN SAID MIXTURE ND INTRODUCING SAID SLURRY TO A ROTATING LOCUS OF CENTRIFUGAL FORCE; REMOVING LIQUID MATERIAL FROM THE UPSTREAM END OF SAID LOCUS; MOVING SOLID MATERIAL TOWARD THE DOWNSTREAM END OF SAID LOCUS; REMOVING PURIFIED MATERIAL FROM THE DOWNSTREAM END OF OF SAID LOCUS; INTRODUCING TO THE DOWNSTREAM END OF SAID LOCUS ONLY, A WASH LIQUID COMPRISING A PORTION OF THE SOLID MATERIAL RECOVERED FROM THE DOWNSTREAM END
Claim 2
Dependent Claim
88 words
A PROCESS OF SEPARATING A MIXTURE OF MATERIAL HAVING DIFFERENT MELTING POINTS COMPRISING FORMING A SLURRY OF SOLIDIFIABLE COMPONENTS IN SAID MIXTURE ND INTRODUCING SAID SLURRY TO A ROTATING LOCUS OF CENTRIFUGAL FORCE; REMOVING LIQUID MATERIAL FROM THE UPSTREAM END OF SAID LOCUS; MOVING SOLID MATERIAL TOWARD THE DOWNSTREAM END OF SAID LOCUS; REMOVING PURIFIED MATERIAL FROM THE DOWNSTREAM END OF OF SAID LOCUS; INTRODUCING TO THE DOWNSTREAM END OF SAID LOCUS ONLY, A WASH LIQUID COMPRISING A PORTION OF THE SOLID MATERIAL RECOVERED FROM THE DOWNSTREAM END
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-10 | 1960-12-10 | 1961-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-10 | 1964-12-10 | 1965-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-10 | 1968-12-10 | 1969-06-11 | $7700.00 | Window Closed / Lapsed |