US2565349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for sweetening petroleum distillates
Assignee: Standard Oil Development Co
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Filing: 1949-09-12
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Granted: 1951-08-21
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Expires: 1969-09-12
Abstract
No abstract record available.
Inventors
- 👤 John G Browder
- 👤 Alvin R Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:49
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04; C10G27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A METHOD FOR SWEETENING A SOUR PETROLEUM DISTIALLATE WHICH COMPRISES CONTACTING A SOUR PETROLEUM DISTILLATE BOILING BELOW 750* F. WITH A SOLUTION OF AN ALKALI METAL HYDROXIDE IN THE PRESENCE OF PYRIDINE AND A MILD OXIDIZING AGENT TO OBTAIN A SWEETENED DISTILLATE, SAID ALKALI METAL HYDROXIDE BEING PRESENT IN AN AMOUNT IN THE RANGE OF 0.1% TO 5.0% BY VOLUME BASED ON THE SOUR PETROLEUM DISTILLATE AND SAID PYRIDINE BEING PRESEENT IN AN AMOUNT IN THE RANGE OF 0.1% TO 5.0% BY VOLUME BASED ON THE SOUR PETROLEUM DISTILLATE.
Claim 2
Independent Claim
89 words
A METHOD FOR SWEETENING A SOUR PETROLEUM DISTIALLATE WHICH COMPRISES CONTACTING A SOUR PETROLEUM DISTILLATE BOILING BELOW 750* F. WITH A SOLUTION OF AN ALKALI METAL HYDROXIDE IN THE PRESENCE OF PYRIDINE AND A MILD OXIDIZING AGENT TO OBTAIN A SWEETENED DISTILLATE, SAID ALKALI METAL HYDROXIDE BEING PRESENT IN AN AMOUNT IN THE RANGE OF 0.1% TO 5.0% BY VOLUME BASED ON THE SOUR PETROLEUM DISTILLATE AND SAID PYRIDINE BEING PRESEENT IN AN AMOUNT IN THE RANGE OF 0.1% TO 5.0% BY VOLUME BASED ON THE SOUR PETROLEUM DISTILLATE.
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) | 1954-08-20 | 1955-02-19 | 1955-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-20 | 1959-02-19 | 1959-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-20 | 1963-02-19 | 1963-08-21 | $7700.00 | Window Closed / Lapsed |