Patent US2900308A successfully refreshed from Google Patents.
US2900308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solvent extraction apparatus
Assignee: Phillips Petroleum Co
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Filing: 1956-04-11
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Granted: 1959-08-18
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Expires: 1976-04-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Matyear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:42
CPC Classifications
B; B01; B01D; B01D11/00; B01D11/04; B01D11/0484; B01D11/0446; B01D11/0473
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
SOLVENT EXTRACTION APPARATUS COMPRISING A VESSEL, COOLING MEANS DISPOSED IN THE LOWER REGION OF SAID VESSEL, AN INLET IN SAID VESSEL THROUGH WHICH A FLUID MIXTURE TO BE SEPARATED AND A SOLVENT CAN BE INTRODUCED, A FIRST OUTLET IN THE UPPER REGION OF SAID VESSEL SPACED FROM SAID INLET, A SECOND OUTLET IN THE LOWER REGION OF SAID VESSEL SPACED FROM SAID INLET, A FIRST BAFFLE DISPOSED GENERALLY VERTICALLY IN THE UPPER REGION OF SAID VESSEL BETWEEN SAID INLET AND SAID FIRST OUTLET, A MIXER EXTENDING THROUGH SAID FIRST BAFFLE TO PERMIT FLUID FLOW THERETHROUGH, A SECOND BAFFLE DISPOSED GENERALLY HORIZONTALLY IN SAID VESSEL IN ENGAGEMENT WITH THE LOWER EDGE OF SAID FIRST BAFFLE AND EXTENDING TO REGIONS SPACED FROM THE ENDS OF SAID VESSEL, AND MEANS TO INTRODUCE SOLVENT THROUGH SAID MIXER INTO THE UPPER REGION OF SAID VESSEL ON THE SIDE OF SAID FIRST BAFFLE ADJACENT SAID FIRST OUTLET.
Claim 2
Dependent Claim
151 words
SOLVENT EXTRACTION APPARATUS COMPRISING A VESSEL, COOLING MEANS DISPOSED IN THE LOWER REGION OF SAID VESSEL, AN INLET IN SAID VESSEL THROUGH WHICH A FLUID MIXTURE TO BE SEPARATED AND A SOLVENT CAN BE INTRODUCED, A FIRST OUTLET IN THE UPPER REGION OF SAID VESSEL SPACED FROM SAID INLET, A SECOND OUTLET IN THE LOWER REGION OF SAID VESSEL SPACED FROM SAID INLET, A FIRST BAFFLE DISPOSED GENERALLY VERTICALLY IN THE UPPER REGION OF SAID VESSEL BETWEEN SAID INLET AND SAID FIRST OUTLET, A MIXER EXTENDING THROUGH SAID FIRST BAFFLE TO PERMIT FLUID FLOW THERETHROUGH, A SECOND BAFFLE DISPOSED GENERALLY HORIZONTALLY IN SAID VESSEL IN ENGAGEMENT WITH THE LOWER EDGE OF SAID FIRST BAFFLE AND EXTENDING TO REGIONS SPACED FROM THE ENDS OF SAID VESSEL, AND MEANS TO INTRODUCE SOLVENT THROUGH SAID MIXER INTO THE UPPER REGION OF SAID VESSEL ON THE SIDE OF SAID FIRST BAFFLE ADJACENT SAID FIRST OUTLET.
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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) | 1962-08-17 | 1963-02-16 | 1963-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-17 | 1967-02-16 | 1967-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-17 | 1971-02-16 | 1971-08-18 | $7700.00 | Window Closed / Lapsed |