US3097924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helium recovery from natural gas
Assignee: Phillips Petroleum Co
•
Filing: 1960-06-30
•
Granted: 1963-07-16
•
Expires: 1980-06-30
Abstract
No abstract record available.
Inventors
- 👤 Patrick J Kinney
- 👤 Leroy C Kahre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:19
CPC Classifications
C; C01; C01B; C01B23/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
THE PROCESS OF RECOVERING HELIUM FROM A HELIUMCONTAINING NATURAL GAS WHICH COMPRISES CONTACTING SAID NATURAL GAS WITH WATER IN A CONTACT ZONE, MAINTAINING THE TEMPERATURE AND PRESSURE OF SAID CONTACT ZONE IN THE RANGE OF 32 TO 75*F. AND IN THE RANGE OF 5,000 TO 25,000 P.S.I.G., RESPECTIVELY, SO AS TO FORM NITROGEN HYDRATE CRYSTALS WITHIN SAID CONTACT ZONE-WITHDRAWING HELIUM FROM SAID CON-
Claim 2
Dependent Claim
63 words
THE PROCESS OF RECOVERING HELIUM FROM A HELIUMCONTAINING NATURAL GAS WHICH COMPRISES CONTACTING SAID NATURAL GAS WITH WATER IN A CONTACT ZONE, MAINTAINING THE TEMPERATURE AND PRESSURE OF SAID CONTACT ZONE IN THE RANGE OF 32 TO 75*F. AND IN THE RANGE OF 5,000 TO 25,000 P.S.I.G., RESPECTIVELY, SO AS TO FORM NITROGEN HYDRATE CRYSTALS WITHIN SAID CONTACT ZONE-WITHDRAWING HELIUM FROM SAID CON-
References Cited (Backward Citations)
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US2399723A
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US2375559A
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US2375560A
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US2448719A
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US2740693A
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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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |