US2648010A
Expired / Lapsed
US
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Method of characterizing hydrocarbon mixtures
Assignee: Standard Oil Development Co
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Filing: 1949-08-10
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Granted: 1953-08-04
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Expires: 1969-08-10
Abstract
No abstract record available.
Inventors
- 👤 Clara D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:53
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/35; G01N21/3577
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
IN A PROCESS FOR CHARACTERIZING COMPLEX LIQUID MIXTURES OF HYDROCARBONS BY INFRARED ABSORPTION CHARACTERISTICS IN WHICH THE MIXTURE TO BE CHARACTERIZED IS FIRST PLACED IN A RELATIVELY THIN SAMPLE CELL, AND FOR WHICH NO CHARACTERISTIC ABSORPTION SPECTRUM CAN BE OBTAINED UTILIZING SUBSTANTIALLY MONOCHROMATIC INFRARED ENERGY, THE IMPROVEMENT WHICH COMPRISES A FIRST STEP OF INCREASING THE SAMPLE CELL THICKNESS UNTIL THE
Claim 2
Dependent Claim
60 words
IN A PROCESS FOR CHARACTERIZING COMPLEX LIQUID MIXTURES OF HYDROCARBONS BY INFRARED ABSORPTION CHARACTERISTICS IN WHICH THE MIXTURE TO BE CHARACTERIZED IS FIRST PLACED IN A RELATIVELY THIN SAMPLE CELL, AND FOR WHICH NO CHARACTERISTIC ABSORPTION SPECTRUM CAN BE OBTAINED UTILIZING SUBSTANTIALLY MONOCHROMATIC INFRARED ENERGY, THE IMPROVEMENT WHICH COMPRISES A FIRST STEP OF INCREASING THE SAMPLE CELL THICKNESS UNTIL THE
References Cited (Backward Citations)
US2483746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |