US2658823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel oil composition
Assignee: ExxonMobil Oil Corp
•
Filing: 1951-08-28
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Granted: 1953-11-10
•
Expires: 1971-08-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry J Andress
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:08
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/188; C10L1/1888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A DISTILLATE FUEL OIL CONTAINING A MINOR AMOUNT, SUFFICIENT TO INHIBIT SLUDGING AND SEDIMENTATION DURING STORAGE, OF A NEUTRAL METAL SALT OF TALL OIL OBTAINED FROM THE SULFATE PROCESS OF WOOD PULPING, WHEREIN THE METAL COMPONENT IS AN ALKALINE-EARTH METAL HAVING A MOLECLAR WEIGHT LESS THAN 87.
Claim 2
Dependent Claim
47 words
A DISTILLATE FUEL OIL CONTAINING A MINOR AMOUNT, SUFFICIENT TO INHIBIT SLUDGING AND SEDIMENTATION DURING STORAGE, OF A NEUTRAL METAL SALT OF TALL OIL OBTAINED FROM THE SULFATE PROCESS OF WOOD PULPING, WHEREIN THE METAL COMPONENT IS AN ALKALINE-EARTH METAL HAVING A MOLECLAR WEIGHT LESS THAN 87.
References Cited (Backward Citations)
US1733620A
Cited
US2514312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |