US2617276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hydrocarbons
Assignee: Black Sivalls and Bryson Inc
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Filing: 1950-06-23
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Granted: 1952-11-11
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Expires: 1970-06-23
Abstract
No abstract record available.
Inventors
- 👤 Clare D Gard
- 👤 Lawton L Laurence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:55
CPC Classifications
C; C10; C10G; C10G5/00; C10G5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE PROCESS OF SEPARATING LIQUEFIABLE HYDROCARBONS FROM NATURAL GAS PRODUCED AT A HIGH PRESSURE SUBSTANTIALLY ABOVE THE LOWER LIMIT OF THE RETROGRADE CONDENSATION RANGE WHICH COMPRISES REDUCING THE PRESSURE OF SAID GAS TO APPROXIMATELY THE LOWER LIMIT OF THE RETROGRADE CONDENSATION RANGE BY EXPANDING THE GAS TO SUCCESSIVELY LOWER PRESSURE IN AT LEAST TWO EXPANSION STEPS, SEPARATING CONDENSED LIQUID FROM THE GAS AFTER EACH OF SAID EXPANSION STEPS, AND REFRIGERATING THE GAS PRIOR TO AT LEAST THE FINAL EXPANSION, STEP BY PASSING IT IN HEAT EXCHANGE RELATIONSHIP TO AT LEAST PART OF THE GAS WITHDRAWN FROM THE SUCCEEDING SEPARATION STEP.
Claim 2
Dependent Claim
100 words
THE PROCESS OF SEPARATING LIQUEFIABLE HYDROCARBONS FROM NATURAL GAS PRODUCED AT A HIGH PRESSURE SUBSTANTIALLY ABOVE THE LOWER LIMIT OF THE RETROGRADE CONDENSATION RANGE WHICH COMPRISES REDUCING THE PRESSURE OF SAID GAS TO APPROXIMATELY THE LOWER LIMIT OF THE RETROGRADE CONDENSATION RANGE BY EXPANDING THE GAS TO SUCCESSIVELY LOWER PRESSURE IN AT LEAST TWO EXPANSION STEPS, SEPARATING CONDENSED LIQUID FROM THE GAS AFTER EACH OF SAID EXPANSION STEPS, AND REFRIGERATING THE GAS PRIOR TO AT LEAST THE FINAL EXPANSION, STEP BY PASSING IT IN HEAT EXCHANGE RELATIONSHIP TO AT LEAST PART OF THE GAS WITHDRAWN FROM THE SUCCEEDING SEPARATION STEP.
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) | 1955-11-11 | 1956-05-12 | 1956-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-11 | 1960-05-12 | 1960-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-11 | 1964-05-12 | 1964-11-11 | $7700.00 | Window Closed / Lapsed |