US2782151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of testing oils
Assignee: Baker Petrolite LLC
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Filing: 1951-09-20
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Granted: 1957-02-19
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Expires: 1971-09-20
Abstract
No abstract record available.
Inventors
- 👤 James G Suthard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:14
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/4166; G01N27/4167
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A METHOD OF TESTING AN OIL SAMPLE OF AN OIL SUBSTANTIALLY COMPLETELY INSOLUBLE IN WATER T DETERMINE THE HYDROGEN ION CONCENTRATION THEREOF BY USE OF SPACED GLASS ADN REFERENCE ELECTRODES, SAID METHOD INCLUDING THE STEPS OF: MIXING TOGETHER SAID OIL SAMPLE, A VOLUME OF WATER SUFFICIENT TO PRODUCE AN OIL-IN-WATER DISPERSION, AND A SMALL AMOUNT OF A NON-IONIC WATER-SOLUBLE SURFACE ACTIVE WETTING AGENT HAVING THE PROPERTY OF PREFERENTIALLY WETTING THE ELECTRODE GLASS WITH WATER AS COMPARED WITH WETTING THE GLASS WITH OIL, THE VOLUME OF WATER AND THE INTENSITY OF MIXING BEING SUFFICIENT, IN THE PRESENCE OF SAID AGENT, TO FORM A WATER-CONTINUOUS DISPERSION COMPRISING AN EXTERNAL PHASE OF WATER WITH THE OIL DISPERSED AS SMALL DROPLETS THEREIN; AND BRIDGING SAID ELECTRODES WITH SAID DISPERSION TO DEVELOP BETWEEN THE ELECTRODES A POTENTIAL DIFFERENCE RELATED TO THE HYDROGEN ION CONCENTRATION OF SAID OIL SAMPLE.
Claim 2
Independent Claim
143 words
A METHOD OF TESTING AN OIL SAMPLE OF AN OIL SUBSTANTIALLY COMPLETELY INSOLUBLE IN WATER T DETERMINE THE HYDROGEN ION CONCENTRATION THEREOF BY USE OF SPACED GLASS ADN REFERENCE ELECTRODES, SAID METHOD INCLUDING THE STEPS OF: MIXING TOGETHER SAID OIL SAMPLE, A VOLUME OF WATER SUFFICIENT TO PRODUCE AN OIL-IN-WATER DISPERSION, AND A SMALL AMOUNT OF A NON-IONIC WATER-SOLUBLE SURFACE ACTIVE WETTING AGENT HAVING THE PROPERTY OF PREFERENTIALLY WETTING THE ELECTRODE GLASS WITH WATER AS COMPARED WITH WETTING THE GLASS WITH OIL, THE VOLUME OF WATER AND THE INTENSITY OF MIXING BEING SUFFICIENT, IN THE PRESENCE OF SAID AGENT, TO FORM A WATER-CONTINUOUS DISPERSION COMPRISING AN EXTERNAL PHASE OF WATER WITH THE OIL DISPERSED AS SMALL DROPLETS THEREIN; AND BRIDGING SAID ELECTRODES WITH SAID DISPERSION TO DEVELOP BETWEEN THE ELECTRODES A POTENTIAL DIFFERENCE RELATED TO THE HYDROGEN ION CONCENTRATION OF SAID OIL SAMPLE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-19 | 1960-08-20 | 1961-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-19 | 1964-08-20 | 1965-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-19 | 1968-08-20 | 1969-02-19 | $7700.00 | Window Closed / Lapsed |