Patent US2866753A successfully refreshed from Google Patents.
US2866753A
Expired / Lapsed
US
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Process for removing free sulfur with an organic phosphite
Assignee: Pure Oil Co
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Filing: 1956-07-17
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Granted: 1958-12-30
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Expires: 1976-07-17
Abstract
No abstract record available.
Inventors
- 👤 George W Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:25
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A PROCESS FOR THE REMOVAL OF ELEMENTAL OR LOOSELY BOUND SULFUR FROM A HYDROCARBON COMPOSITION WHICH COMPRISES CONTACTING SAID HYDROCARBON COMPOSITION WITH AN ORGANIC PHOSPHITE HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
30 words
A PROCESS FOR THE REMOVAL OF ELEMENTAL OR LOOSELY BOUND SULFUR FROM A HYDROCARBON COMPOSITION WHICH COMPRISES CONTACTING SAID HYDROCARBON COMPOSITION WITH AN ORGANIC PHOSPHITE HAVING THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2413353A
Cited
US2427173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |