US2608520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sweetening process
Assignee: Standard Oil Development Co
•
Filing: 1951-08-25
•
Granted: 1952-08-26
•
Expires: 1971-08-25
Abstract
No abstract record available.
Inventors
- 👤 Arundale Erving
- 👤 John P Thorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:11
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/20; C10G29/22; C10G19/00; C10G19/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
PROCESS FOR THE REMOVAL OF MERCAPTAN COMPOUNDS FROM A PETROLEUM OIL CONTAINING THE SAME
Claim 2
Dependent Claim
14 words
PROCESS FOR THE REMOVAL OF MERCAPTAN COMPOUNDS FROM A PETROLEUM OIL CONTAINING THE SAME
References Cited (Backward Citations)
US2511251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |