US2775103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon separation
Assignee: Phillips Petroleum Co
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Filing: 1954-12-23
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Granted: 1956-12-25
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Expires: 1974-12-23
Abstract
No abstract record available.
Inventors
- 👤 Robert A Koble
- 👤 Fred T Sherk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:50
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0204; F25J3/0209; C; C07; C07C; C07C7/00; C07C7/04; C07C7/05; F25J3/0228; F25J3/0233; F25J3/0238; F25J2200/00; F25J2200/02; F25J2200/74; F25J2200/78; F25J2205/00; F25J2205/50; F25J2270/00; F25J2270/04; F25J2270/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A DEMETHANIZING SYSTEM COMPRISING A DEMETHANIZER HAVING A FEED INLET, A BOTTOMS PRODUCT OUTLET, AN OVERHEAD PRODUCTS OUTLET, AND A REFLUX INLET; MEANS FOR MIXING THE OVERHEAD PRODUCT WITH A SOLVENT; MEANS FOR COOLING A RESULTING MIXTURE; A FIRST MEANS FOR SEPARATING SAID MIXTURE INTO A LIQUID AND A GAS; MEANS FOR PASSING THE RESULTING LIQUID TO THE REFLUX INLET OF SAID DEMETHANIZER; MEANS FOR COOLING SAID RESULTING GAS, AS HEREINAFTER SET FORTH; A SECOND MEANS FOR SEPARATING A LIQUID FROM SAID GAS; MEANS FOR PASSING A RESULTING LIQUID TO THE REFLUX INLET OF SAID DEMETHANIZER; GAS EXPANDING MEANS; AND MEANS FOR PASSING THE GAS FROM THE SECOND SEPARATOR THROUGH SAID GAS EXPANDING MEANS AND IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH THE GAS FROM SAID FIRST SEPARATOR AS THE HEREINBEFORE REFERRED TO COOLING MEANS.
Claim 2
Dependent Claim
134 words
A DEMETHANIZING SYSTEM COMPRISING A DEMETHANIZER HAVING A FEED INLET, A BOTTOMS PRODUCT OUTLET, AN OVERHEAD PRODUCTS OUTLET, AND A REFLUX INLET; MEANS FOR MIXING THE OVERHEAD PRODUCT WITH A SOLVENT; MEANS FOR COOLING A RESULTING MIXTURE; A FIRST MEANS FOR SEPARATING SAID MIXTURE INTO A LIQUID AND A GAS; MEANS FOR PASSING THE RESULTING LIQUID TO THE REFLUX INLET OF SAID DEMETHANIZER; MEANS FOR COOLING SAID RESULTING GAS, AS HEREINAFTER SET FORTH; A SECOND MEANS FOR SEPARATING A LIQUID FROM SAID GAS; MEANS FOR PASSING A RESULTING LIQUID TO THE REFLUX INLET OF SAID DEMETHANIZER; GAS EXPANDING MEANS; AND MEANS FOR PASSING THE GAS FROM THE SECOND SEPARATOR THROUGH SAID GAS EXPANDING MEANS AND IN INDIRECT HEAT EXCHANGE RELATIONSHIP WITH THE GAS FROM SAID FIRST SEPARATOR AS THE HEREINBEFORE REFERRED TO COOLING MEANS.
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) | 1959-12-25 | 1960-06-25 | 1960-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-25 | 1964-06-25 | 1964-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-25 | 1968-06-25 | 1968-12-25 | $7700.00 | Window Closed / Lapsed |