US2732693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
collins
Assignee: —
•
Filing: —
•
Granted: 1956-01-31
•
Expires: 1973-01-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:07
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
METHOD OF SEPARATING A GASEOUS MIXTURE BY REFRIGERATION AND RECTIFICATION TO PROVIDE A DESIRED GASEOUS PRODUCT WHICH INCLUDES THE DELIVERY OF A LIQUEFIED GASEOUS PRODUCT AS RAPIDLY AS IT IS FORMED, INTO A COLUMN FOR RECTIFICATION THEREIN AND MAINTAINING THE DESIGNED DIFFERENCE BETWEEN THE PRESSURE OF THE LIQUEFIED GASEOUS MIXTURE AND THE PRESSURE WITHIN THE COLUMN BY PASSING SUCH LIQUEFIED MIXTURE THROUGH A METERING DEVICE OF THE MEASURING CHAMBER TYPE HAVING A FIXED DISPLACEMENT RATE SLIGHTLY, BUT ONLY SLIGHTLY, EXCEEDING THE RATE AT WHICH SUCH LIQUID IS PRODUCED.
Claim 2
Dependent Claim
88 words
METHOD OF SEPARATING A GASEOUS MIXTURE BY REFRIGERATION AND RECTIFICATION TO PROVIDE A DESIRED GASEOUS PRODUCT WHICH INCLUDES THE DELIVERY OF A LIQUEFIED GASEOUS PRODUCT AS RAPIDLY AS IT IS FORMED, INTO A COLUMN FOR RECTIFICATION THEREIN AND MAINTAINING THE DESIGNED DIFFERENCE BETWEEN THE PRESSURE OF THE LIQUEFIED GASEOUS MIXTURE AND THE PRESSURE WITHIN THE COLUMN BY PASSING SUCH LIQUEFIED MIXTURE THROUGH A METERING DEVICE OF THE MEASURING CHAMBER TYPE HAVING A FIXED DISPLACEMENT RATE SLIGHTLY, BUT ONLY SLIGHTLY, EXCEEDING THE RATE AT WHICH SUCH LIQUID IS PRODUCED.
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) | 1959-01-30 | 1959-08-01 | 1960-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-30 | 1963-08-01 | 1964-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-30 | 1967-08-01 | 1968-01-31 | $7700.00 | Window Closed / Lapsed |