US3026683A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation of hydrogen and methane
Assignee: MW Kellogg Co
•
Filing: 1961-03-07
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Granted: 1962-03-27
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Expires: 1981-03-07
Abstract
No abstract record available.
Inventors
- 👤 Dominic F Palazzo
- 👤 Warren C Schreiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:55
CPC Classifications
F; F25; F25J; F25J3/00; F25J3/02; F25J3/0228; F25J3/0252; F25J3/0204; F25J3/0219; F25J3/0233; F25J2205/00; F25J2205/02; F25J2205/04; F25J2205/30; F25J2205/50; F25J2210/00; F25J2210/12; F25J2240/00; F25J2240/02; F25J2270/00; F25J2270/04; F25J2270/06; Y; Y10; Y10S; Y10S62/00; Y10S62/931; Y10S62/932
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
IN A PROCESS FOR THE SEPARATION OF HYDROGEN FROM A MIXTURE CONTAINING HYDROGEN AND METHANE COMPRISING CONTACTING SAID MIXTURE WITH A LIQUID HYDROCARBON IN AN ABSORPTION ZONE AND RECOVERING PURIFIED HYDROGEN FROM SAID ABSORPTION ZONE, THE IMPROVED METHOD FOR THE RECOVERY OF HYDROGEN OF HIGH PURITY WITHOUT SUBSTANTIAL ABSORPTION OF HYDROGEN BY THE HYDROCARBON LIQUID IN THE ABSORPTION ZONE WHICH COMPRISES USING A LIQUEFIED NORMALLY GASEOUS HYDROCARBON SELECTED FROM THE GROUP CONSISTING OF C2 AND C3 HYDROCARBONS AS SAID HYDROCARBON LIQUID AND MAINTAINING SAID ABSORPTION ZONE ATA TEMPERATURE OF
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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) | 1965-03-26 | 1965-09-25 | 1966-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-26 | 1969-09-25 | 1970-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-26 | 1973-09-25 | 1974-03-27 | $7700.00 | Window Closed / Lapsed |