Patent US2923823A successfully refreshed from Google Patents.
US2923823A
Expired / Lapsed
US
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Method for determining the presence of aldehydes in mixtures
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-03-17
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Granted: 1960-02-02
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Expires: 1979-03-17
Abstract
No abstract record available.
Inventors
- 👤 Forrester John Stanley
- 👤 Charlet Elphege Maxime
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:36
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/33
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
80 words
A CONTINUOUS METHOD FOR DETERMINING THE PRESENCE OF ALIPHATIC ALDEHYDE IN A C8 TO C20 PRIMARY ALCOHOL PRODUCT STREAM WHICH COMPRISES CONTINUOUSLY FLOWING AT LEAST A PORTION OF SAID PRODUCT STREAM THROUGH TWO TRANSPARENT CELLS, MAINTING THE ALCOHOL PRODUCT IN EACH SAID CELL AT A SUBSTANTIALLY CONSTANT BUT DIFFERENT TEMPERATURE, CONTINUOUSLY MEASURING THE INTENSITY OF A 260 TO 300 MU LIGHT BEAM TRANSMITTED THROUGH EACH SAID CELL AND RECORDING THE DIFFERENCE IN INTENSITY BETWEEN SAID TRANSMITTED BEAMS OF ULTRAVIOLET LIGHT.
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) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |