US3334469A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing hydrogen sulfide from natural gas
Assignee: Individual
•
Filing: 1964-02-18
•
Granted: 1967-08-08
•
Expires: 1984-02-18
Abstract
No abstract record available.
Inventors
- 👤 Deicher Oskar
- 👤 Peter Siegfried
- 👤 Buchholz Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:10
CPC Classifications
C; C10; C10K; C10K1/00; C10K1/08; C10K1/16; B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/48; B01D53/52; B01D53/523; C07; C07C; C07C7/00; C07C7/005; C07C7/11
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A PROCESS FOR THE REMOVAL OF HYDROGEN SULFIDE FROM NATURAL GAS AND OTHER HYDROCARBON-CONTAINING GASES WHICH COMPRISES SUBJECTING SUCH GASES TO A PRESSURE WASH WITH A TRIALKYLPHOSPHORIC ACID ESTER WASHING MEDIUM AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO ABOUT 40*C. AND REGENERATING THE WASHING MEDIUM BY PRESSURE RELEASE.
Claim 2
Dependent Claim
49 words
A PROCESS FOR THE REMOVAL OF HYDROGEN SULFIDE FROM NATURAL GAS AND OTHER HYDROCARBON-CONTAINING GASES WHICH COMPRISES SUBJECTING SUCH GASES TO A PRESSURE WASH WITH A TRIALKYLPHOSPHORIC ACID ESTER WASHING MEDIUM AT A TEMPERATURE RANGING FROM ROOM TEMPERATURE TO ABOUT 40*C. AND REGENERATING THE WASHING MEDIUM BY PRESSURE RELEASE.
References Cited (Backward Citations)
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US3193986A
Cited
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US3225519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |