Patent US2001049A successfully refreshed from Google Patents.
US3348920A
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Reagent and method for the quantitative determination of bilirubin
Assignee: Dade Reagents Inc
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Filing: 1964-02-25
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Granted: 1967-10-24
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Expires: 1984-02-25
Abstract
No abstract record available.
Inventors
- 👤 Patrick V Ferro
- 👤 Ham Anna Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:56
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/72; G01N33/728; Y; Y10; Y10T; Y10T436/00; Y10T436/14; Y10T436/145555; Y10T436/146666; Y10T436/25; Y10T436/25125
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD FOR QUANTITATIVELY DETERMINING THE BILIRUBIN CONTENT OF A SAMPLE COMPRISING THE STEPS OF REACTING SAID SAMPLE WITH A DIAGNOSTIC REAGENT CONTAINING AN ACID CAPABLE OF OXIDIZING BILIRUBIN IN THE PRESENCE OF FERRIC IONS, A FERRIC ION CATALYST, AN ALCOHOL, AND A LIPID SOLVENT COMPRISING AN ETHYLENE GLYCOL DERIVATIVE HAVING ONE OF THE HYDROXYL GROUPS THREREOF ETHERIFIED BY A SHORT CHAIN ALKYL GROUP, TO SOLUBILIZE AND OXIDIZE ALL OF SAID BILIRUBIN; AND THEREAFTER COLORIMETRICALLY ANALYZING THE OXIDIZED BILIRUBIN SOLUTION TO DETERMINE OPTICALLY THE BILIRUBIN CONTENT THEREOF.
Claim 2
Independent Claim
87 words
A METHOD FOR QUANTITATIVELY DETERMINING THE BILIRUBIN CONTENT OF A SAMPLE COMPRISING THE STEPS OF REACTING SAID SAMPLE WITH A DIAGNOSTIC REAGENT CONTAINING AN ACID CAPABLE OF OXIDIZING BILIRUBIN IN THE PRESENCE OF FERRIC IONS, A FERRIC ION CATALYST, AN ALCOHOL, AND A LIPID SOLVENT COMPRISING AN ETHYLENE GLYCOL DERIVATIVE HAVING ONE OF THE HYDROXYL GROUPS THREREOF ETHERIFIED BY A SHORT CHAIN ALKYL GROUP, TO SOLUBILIZE AND OXIDIZE ALL OF SAID BILIRUBIN; AND THEREAFTER COLORIMETRICALLY ANALYZING THE OXIDIZED BILIRUBIN SOLUTION TO DETERMINE OPTICALLY THE BILIRUBIN CONTENT THEREOF.
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) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |