Patent US4356476A successfully refreshed from Google Patents.
Patent US2819954A successfully refreshed from Google Patents.
US2819954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rust inhibitor formulation
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-05-28
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Granted: 1958-01-14
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Expires: 1973-05-28
Abstract
No abstract record available.
Inventors
- 👤 Charles F W Gebelein
- 👤 Harry W Rudel
- 👤 Gargisa Marion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:02
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A PETROLEUM DISTILLATE FUEL HAVING INCORPORATED THEREIN AS A RUST INHIBITING ADDITIVE IN A CONCENTRATION OF ABOUT 1/4 TO 25 POUNDS PER 1000 BARRELS OF DISTILLATE A MIXTURE OF ONE PART BY WEIGHT OF AN AMMONIUM POLYPROPYL BENZENE SULFONATE WHEREIN THE POLYPROPYL GROUP CONTAINS FROM 9 TO 15 CARBON ATOMS AND FROM ONE TO THREE PARTS BY WEIGHT OF AN AMMONIUM ISOOCTYL PHOSPHATE.
Claim 2
Dependent Claim
63 words
A PETROLEUM DISTILLATE FUEL HAVING INCORPORATED THEREIN AS A RUST INHIBITING ADDITIVE IN A CONCENTRATION OF ABOUT 1/4 TO 25 POUNDS PER 1000 BARRELS OF DISTILLATE A MIXTURE OF ONE PART BY WEIGHT OF AN AMMONIUM POLYPROPYL BENZENE SULFONATE WHEREIN THE POLYPROPYL GROUP CONTAINS FROM 9 TO 15 CARBON ATOMS AND FROM ONE TO THREE PARTS BY WEIGHT OF AN AMMONIUM ISOOCTYL PHOSPHATE.
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) | 1961-01-13 | 1961-07-15 | 1962-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-13 | 1965-07-15 | 1966-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-13 | 1969-07-15 | 1970-01-14 | $7700.00 | Window Closed / Lapsed |