US2770602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preparing protein standardized reagents
Assignee: A S ALOE Co
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Filing: 1953-10-15
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Granted: 1956-11-13
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Expires: 1973-10-15
Abstract
No abstract record available.
Inventors
- 👤 Theodore E Weichselbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:24
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/96; G01N2496/00; G01N2496/05; G01N33/68; G01N33/72; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/103332; Y10T436/105831
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
THE METHOD OF MAKING PROTEIN STANDARDIZED REAGENTS FOR USE IN COLORIMETRY AND IN CHECKING THE ACCURACY OF SPECTROPHOTOMETRIC CALIBRATION TABLES AS UTILIZED FOR THE DETERMINATION OF TOTAL SERUM PROTEIN, WHICH METHOD COMPRISES DETERMINING THE PROTEIN CONTENT IN A PREDETERMINED QUANTITY OF NON-HUMAN BLOOD PLASMA, DILUTING THE PREDETERMINED QUANTITY OF PLASMA IN A .85 PERCENT SODIUM CHLORIDE SOLUTION TO PROVIDE A LIQUID REAGENT OF PREDETERMINED CONCENTRATION OF PROTEIN, PLACING A MEASURED QUANTITY OF THE LIQUID REAGENT WITHIN A GLASS CONTAINER, FREEZING THE LIQUID MATERIAL IN THE CONTAINER, SUBJECTING THE FROZEN MATERIAL TO A HIGH VACUUM SYSTEM FOR COMPLETE DESICCATION OF THE REAGENT TO PROVIDE A SOLID STANDARDIZED REAGENT, THEN SEALING THE CONTAINER UNDER VACUUM, OPENING THE CONTAINER AT THE TIME OF PREPARATION OF THE STANDARD, THEN TRANSFERRING THE REAGENT INTO A CONTAINER OF PREDETERMINED VOLUME HAVING A VOLUME INDICATING MARK, AND THEN MAKING UP TO THE MARK WITH DILUTENT TO CONSTITUTE A STANDARDIZED REAGENT OF PREDETERMINED CONCENTRATION.
Claim 2
Independent Claim
156 words
THE METHOD OF MAKING PROTEIN STANDARDIZED REAGENTS FOR USE IN COLORIMETRY AND IN CHECKING THE ACCURACY OF SPECTROPHOTOMETRIC CALIBRATION TABLES AS UTILIZED FOR THE DETERMINATION OF TOTAL SERUM PROTEIN, WHICH METHOD COMPRISES DETERMINING THE PROTEIN CONTENT IN A PREDETERMINED QUANTITY OF NON-HUMAN BLOOD PLASMA, DILUTING THE PREDETERMINED QUANTITY OF PLASMA IN A .85 PERCENT SODIUM CHLORIDE SOLUTION TO PROVIDE A LIQUID REAGENT OF PREDETERMINED CONCENTRATION OF PROTEIN, PLACING A MEASURED QUANTITY OF THE LIQUID REAGENT WITHIN A GLASS CONTAINER, FREEZING THE LIQUID MATERIAL IN THE CONTAINER, SUBJECTING THE FROZEN MATERIAL TO A HIGH VACUUM SYSTEM FOR COMPLETE DESICCATION OF THE REAGENT TO PROVIDE A SOLID STANDARDIZED REAGENT, THEN SEALING THE CONTAINER UNDER VACUUM, OPENING THE CONTAINER AT THE TIME OF PREPARATION OF THE STANDARD, THEN TRANSFERRING THE REAGENT INTO A CONTAINER OF PREDETERMINED VOLUME HAVING A VOLUME INDICATING MARK, AND THEN MAKING UP TO THE MARK WITH DILUTENT TO CONSTITUTE A STANDARDIZED REAGENT OF PREDETERMINED CONCENTRATION.
References Cited (Backward Citations)
US2085391A
Cited
US2225774A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |