US2828247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of petroleum hydrocarbons
Assignee: Sunoco Inc
•
Filing: 1955-11-18
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Granted: 1958-03-25
•
Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 Rolland G Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:48
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
PROCESS OF DECREASING THE MERCAPTAN CONTENT OF SOUR PETROLEUM HYDROCARBONS WHICH COMPRISES BRINGING TOGETHER, IN CONTACT THEREWITH, A SMALL AMOUNT OF AN N,N''DI-ALKYL-P-PHENYLENE-DIAMINE, AMMONIA, AN ALKALI METAL HYDROXIDE, WATER AND OXYGEN.
Claim 2
Dependent Claim
31 words
PROCESS OF DECREASING THE MERCAPTAN CONTENT OF SOUR PETROLEUM HYDROCARBONS WHICH COMPRISES BRINGING TOGETHER, IN CONTACT THEREWITH, A SMALL AMOUNT OF AN N,N''DI-ALKYL-P-PHENYLENE-DIAMINE, AMMONIA, AN ALKALI METAL HYDROXIDE, WATER AND OXYGEN.
References Cited (Backward Citations)
US2616831A
Cited
US2729592A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |