US3682835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid blood serum control standard
Assignee: Baxter International Inc
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Filing: 1970-11-24
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Granted: 1972-08-08
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Expires: 1990-11-24
Abstract
Abstract A LIQUID CONTROL STANDARD FOR USE IN THE ANALYSIS OF BLOOD SERUM, WHICH STANDARD IS PREPARED FROM ANTICOAGULANTSTORED BLOOD PLASMA BY TREATING THE DEBFIBRINATED PLASMA WITH ION EXCHANGE RESIN TO REDUCE THE ALKALI AND ALKALINEEARTH METAL CATION LEVEL FOLLOWED BY DRYING, REMOVING THE LIPOPROTEIN COMPONENT BY EXTRACTION WITH A FAT SOLVENT AND THEN RECONSTITUTING THE PRODUCT WITH WATER.
Inventors
- 👤 Allan L Louderback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:32
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/96; B; B01; B01J; B01J39/00; B01J39/04; B01J39/05; G01N2496/00; G01N2496/05; G01N2496/80; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/102499; Y10T436/103332; Y10T436/104165; Y10T436/104998; Y10T436/105831; Y10T436/106664; Y10T436/107497; Y10T436/108331; Y10T436/109163
Claims Analysis
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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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |