Patent US2435669A successfully refreshed from Google Patents.
Patent US3124443A successfully refreshed from Google Patents.
US3124443A
Expired / Lapsed
US
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Gas fractionating system
Assignee: —
•
Filing: —
•
Granted: 1964-03-10
•
Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:57
CPC Classifications
F; F25; F25J; F25J5/00; F25J5/002; A; A23; A23B; A23B7/00; A23B7/14; A23B7/153; A23B7/154; F25J3/00; F25J3/02; F25J3/04; F25J3/04763; F25J3/04769; F25J3/04854; F25J3/0486; F25J3/08; F25J5/005; F25J2205/00; F25J2205/84; F25J2210/00; F25J2210/40; Y; Y10; Y10S; Y10S62/00; Y10S62/902; Y10S62/905; Y10S62/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
A GAS FRACTIONATING SYSTEM HAVING A FEED GAS CONTAINING ACETYLENE AND PRODUCING A PRODUCT IN A LIQUID STATE COMPRISING A FRACTIONATING COLUMN PROVIDED BOTTOM THEREOF WITH A BOILING VESSEL FOR COLLECTING LIQUID FROM SAID COLUMN, A HOUSING HAVING OPENINGS THEREIN THROUGH WHICH THE FEED GAS TO BE FRACTIONATED IS SUPPLIED, SAID BOILING VESSEL BEING LOCATED IN SAID HOUSING, A CAGE IN SAID HOUSING HAVING A GAS PERMEABLE WALL, SAID CAGE DEPENDING FROM AND CONNECTED TO SAID BOILING VESSEL AND BEING THE FIRST COOLER FOR SAID GAS, A SECOND COOLER ARRANGED IN THE PATH OF GAS FLOW TOWARD SAID FRACTIONATING COLUMN AND COOLING THE GAS FURTHER, SAID SECOND COOLER BEING A PLURALITY OF SPACED GAS-PERVIOUS MEMBERS SECURED TO AN IN HEAT EXCHANGE WITH THE LOWER PART OF SAID COLUMN WHICH COLLECT ACETYLENE AND OTHER SUBSTANCES SEP-
Claim 2
Dependent Claim
135 words
A GAS FRACTIONATING SYSTEM HAVING A FEED GAS CONTAINING ACETYLENE AND PRODUCING A PRODUCT IN A LIQUID STATE COMPRISING A FRACTIONATING COLUMN PROVIDED BOTTOM THEREOF WITH A BOILING VESSEL FOR COLLECTING LIQUID FROM SAID COLUMN, A HOUSING HAVING OPENINGS THEREIN THROUGH WHICH THE FEED GAS TO BE FRACTIONATED IS SUPPLIED, SAID BOILING VESSEL BEING LOCATED IN SAID HOUSING, A CAGE IN SAID HOUSING HAVING A GAS PERMEABLE WALL, SAID CAGE DEPENDING FROM AND CONNECTED TO SAID BOILING VESSEL AND BEING THE FIRST COOLER FOR SAID GAS, A SECOND COOLER ARRANGED IN THE PATH OF GAS FLOW TOWARD SAID FRACTIONATING COLUMN AND COOLING THE GAS FURTHER, SAID SECOND COOLER BEING A PLURALITY OF SPACED GAS-PERVIOUS MEMBERS SECURED TO AN IN HEAT EXCHANGE WITH THE LOWER PART OF SAID COLUMN WHICH COLLECT ACETYLENE AND OTHER SUBSTANCES SEP-
References Cited (Backward Citations)
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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) | 1967-03-10 | 1967-09-09 | 1968-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-10 | 1971-09-09 | 1972-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-10 | 1975-09-09 | 1976-03-10 | $7700.00 | Window Closed / Lapsed |