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US2577640A
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Method for analyzing hydrocarbons
Assignee: Standard Oil Development Co
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Filing: 1948-11-18
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Granted: 1951-12-04
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Expires: 1968-11-18
Abstract
No abstract record available.
Inventors
- 👤 Edward F Wadley
- 👤 Jr James A Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:32
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/3577; Y; Y10; Y10T; Y10T436/00; Y10T436/21; Y10T436/214; Y10T436/216; Y10T436/25; Y10T436/25125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A METHOD FOR ANALYZING A HYDROCARBON FRACTION SELECTED FROM THE GROUP OF FRACTIONS BOILING IN THE GASOLINE BOILING RANGE AND IN THE KEROSENE AND GAS-OIL BOILING RANGE AND CONTAINING DIENES WHICH COMPRISES BLENDING SAID FRACTION WITH A NORMALLY LIQUID SATURATED HYDROCARBON TO FORM A BLEND IN WHICH SAID DIENE-CONTAINING DIENES IS IN A MINOR QUANTITY, DIVIDIING SAID BLEND INTO FIRST AND SECOND PORTIONS, CONTACTING SAID FIRST PORTION WITH A SOULTUON OF A TREATING REAGENT, SELECTIVE FOR THE REMOVAL OF DIENES, SELECTED FROM THE GROUP CONSISTING OF NITRIC ACID ACIDIFIED MERCURIC NITRATE AND POTASSIUM PERMANGANATE, REMOVING SAID TREATING REAGENT FROM CONTACT WITH SAID CONTACTED PORTION, AND PASSING SEPARATELY SEPARATE BEAMS OF LIGHT AT WAVE LENGTHS OF 235 AND 258 MILLIMICRONS THROUGH AT LEAST A PORTION OF SAID CONTACTED FIRST PORTION AND THROUGH AT LEAST A PORTION OF SAID SECOND PORTION TO OBTAIN VALUES WHICH ARE MEASURES OF THE LIGHT ABSORPTION COEFFICIENTS OF SAID CONTACTED FIRST PORTION AND SAID SECOND PORTION AT SAID WAVE LENGTHS WHEREBY THE DIENE INDEX OF SAID FRACTION MAY BE OBTAINED.
Claim 2
Independent Claim
173 words
A METHOD FOR ANALYZING A HYDROCARBON FRACTION SELECTED FROM THE GROUP OF FRACTIONS BOILING IN THE GASOLINE BOILING RANGE AND IN THE KEROSENE AND GAS-OIL BOILING RANGE AND CONTAINING DIENES WHICH COMPRISES BLENDING SAID FRACTION WITH A NORMALLY LIQUID SATURATED HYDROCARBON TO FORM A BLEND IN WHICH SAID DIENE-CONTAINING DIENES IS IN A MINOR QUANTITY, DIVIDIING SAID BLEND INTO FIRST AND SECOND PORTIONS, CONTACTING SAID FIRST PORTION WITH A SOULTUON OF A TREATING REAGENT, SELECTIVE FOR THE REMOVAL OF DIENES, SELECTED FROM THE GROUP CONSISTING OF NITRIC ACID ACIDIFIED MERCURIC NITRATE AND POTASSIUM PERMANGANATE, REMOVING SAID TREATING REAGENT FROM CONTACT WITH SAID CONTACTED PORTION, AND PASSING SEPARATELY SEPARATE BEAMS OF LIGHT AT WAVE LENGTHS OF 235 AND 258 MILLIMICRONS THROUGH AT LEAST A PORTION OF SAID CONTACTED FIRST PORTION AND THROUGH AT LEAST A PORTION OF SAID SECOND PORTION TO OBTAIN VALUES WHICH ARE MEASURES OF THE LIGHT ABSORPTION COEFFICIENTS OF SAID CONTACTED FIRST PORTION AND SAID SECOND PORTION AT SAID WAVE LENGTHS WHEREBY THE DIENE INDEX OF SAID FRACTION MAY BE OBTAINED.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-03 | 1955-06-04 | 1955-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-03 | 1959-06-04 | 1959-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-03 | 1963-06-04 | 1963-12-04 | $7700.00 | Window Closed / Lapsed |