US3041870A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water detection in hydrocarbon fuels
Assignee: ExxonMobil Oil Corp
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Filing: 1958-03-26
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Granted: 1962-07-03
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Expires: 1978-03-26
Abstract
No abstract record available.
Inventors
- 👤 William S Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:52
CPC Classifications
G; G01; G01N; G01N31/00; G01N31/22; G01N31/222
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
THE METHOD OF DETERMINING THE PRESENCE OF UNDESIRABLE AMOUNTS OF WATER OF THE ORDER OF ABOUT 40 PARTS PER MILLION OR MORE IN DISTILLATE FUELS COMPRISING PLACING A MEASURED QUANTITY OF THE TEST FUEL IN AN ENCLOSED TEST ZONE, ADDING A SMALL AMOUNT OF AN OIL-SOLUBLE WETTING AGENT TO THE FUEL SAMPLE, ADDING A SMALL AMOUNT OF WATERSOLUBLE DYE TO THE FUEL SAMPLE, TREATING A WHITE, UNSIZED PAPER WITH A WATER-SOLUBLE WETTING AGENT AND DRYING THE PAPER BEFORE USE, VIGOROUSLY AGITATING THE FUEL SAMPLE IN THE PRESENCE OF THE DRY PAPER WHEREBY THE PRESENCE OF WATER IS INDICATED BY THE NUMBER AND INTENSITY OF COLORED DOTS WHICH APPEAR ON THE UNSIZED WHITE PAPER WHEN THE FUEL CONTAINS AN EXCESSIVE AMOUNT OF SUSPENDED WATER.
Claim 2
Independent Claim
123 words
THE METHOD OF DETERMINING THE PRESENCE OF UNDESIRABLE AMOUNTS OF WATER OF THE ORDER OF ABOUT 40 PARTS PER MILLION OR MORE IN DISTILLATE FUELS COMPRISING PLACING A MEASURED QUANTITY OF THE TEST FUEL IN AN ENCLOSED TEST ZONE, ADDING A SMALL AMOUNT OF AN OIL-SOLUBLE WETTING AGENT TO THE FUEL SAMPLE, ADDING A SMALL AMOUNT OF WATERSOLUBLE DYE TO THE FUEL SAMPLE, TREATING A WHITE, UNSIZED PAPER WITH A WATER-SOLUBLE WETTING AGENT AND DRYING THE PAPER BEFORE USE, VIGOROUSLY AGITATING THE FUEL SAMPLE IN THE PRESENCE OF THE DRY PAPER WHEREBY THE PRESENCE OF WATER IS INDICATED BY THE NUMBER AND INTENSITY OF COLORED DOTS WHICH APPEAR ON THE UNSIZED WHITE PAPER WHEN THE FUEL CONTAINS AN EXCESSIVE AMOUNT OF SUSPENDED WATER.
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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |