Patent US2726992A successfully refreshed from Google Patents.
US2726992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing carbonyl sulfide from liquefied petroleum gases
Assignee: California Research LLC
•
Filing: 1954-03-26
•
Granted: 1955-12-13
•
Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 John H Easthagen
- 👤 Jr Howard I Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:17
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
THE METHOD OF REMOVING CARBONYL SULFIDE FROM NONMALLY GASEOUS PETROLEUM HYDROCARBONS CONTAINING CARBONYL SULFIDE WHICH COMPRISES INTIMATELY CONTACTING SAID HYDROCARBON GASES IN LIQUID PHASE WITH A SOLUTION CONSISTING OF DIETHANOLAMINE AND WATER.
Claim 2
Independent Claim
32 words
THE METHOD OF REMOVING CARBONYL SULFIDE FROM NONMALLY GASEOUS PETROLEUM HYDROCARBONS CONTAINING CARBONYL SULFIDE WHICH COMPRISES INTIMATELY CONTACTING SAID HYDROCARBON GASES IN LIQUID PHASE WITH A SOLUTION CONSISTING OF DIETHANOLAMINE AND WATER.
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) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |