US2626277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation of petroleum fractions
Assignee: Cities Service Research and Development Co
•
Filing: 1948-10-15
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Granted: 1953-01-20
•
Expires: 1968-10-15
Abstract
No abstract record available.
Inventors
- 👤 Sylvan R Merley
- 👤 Kofoet August
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:01
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE PROCESS OF OXIDIZING PETROLEUM FRACTIONS INCLUDING BLOWING A PARAFFIN WAX IN LIQUID PHASE WITH AIR IN A REACTION ZONE AT TEMPERATURES IN EXCESS OF 290* F. IN THE PRESENCE OF FROM ABOUT 0.1 PER CENT TO ABOUT 10 PER CENT OF CUMENE HYDROPEROXIDE, THE PERCENTAGES BEING BY WEIGHT OF THE PARAFFIN WAX THE SAID PEROXIDE SERVING TO SUBSTANTIALLY REDUCE THE INDUCTION PERIOD OF THE REACTION.
Claim 2
Dependent Claim
66 words
THE PROCESS OF OXIDIZING PETROLEUM FRACTIONS INCLUDING BLOWING A PARAFFIN WAX IN LIQUID PHASE WITH AIR IN A REACTION ZONE AT TEMPERATURES IN EXCESS OF 290* F. IN THE PRESENCE OF FROM ABOUT 0.1 PER CENT TO ABOUT 10 PER CENT OF CUMENE HYDROPEROXIDE, THE PERCENTAGES BEING BY WEIGHT OF THE PARAFFIN WAX THE SAID PEROXIDE SERVING TO SUBSTANTIALLY REDUCE THE INDUCTION PERIOD OF THE REACTION.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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GB610293A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |