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US3761408A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for separating blood constituent components

Assignee: Individual
•
Filing: 1972-05-08
•
Granted: 1973-09-25
•
Expires: 1992-05-08
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Abstract

Abstract A METHOD AND APPARATUS FOR SEPARATING BLOOD INTO CONSTITUENT COMPONENTS FRO MEDICAL BLOOD TESTS. AN IMPERVIOUS CONTAINER HAVING AN OPEN MOUTH IS FITTED WITH A SELECTIVELY REMOVABLE CLOSURE COVERING THE OPEN MOUTH FOR SEALING THE CONTAINER. THE SEALED CONTAINER IS PREFERABLY EVACUATED AND INCLUDES A FLEXIBLE MEMBRANE THEREWITHIN WHICH IS SEALINGLY SECURED TO THE CLOSURE AND FORMS A BLOOD COLLECTION BAG. THE MEMBRANE HAS AT LEAST A PORTION THEREOF EFFECTIVE TO PERMIT THE PASSAGE OF BLOOD PLASMA OR SERUM AND PROTEIN FREE FILTRATE HAVING PARTICLES LESS THAN PREDETERMINED SIZES INTO THE CONTAINER AND TRAPS THE REMAINING BLOOD CONSTITUENT COMPONENTS WITHIN THE FLEXIBLE MEMBRANE DURING A CENTRIFUGING OPERATION AND UPON REMOVAL OF THE CLOSURE INCLUDING THE FLEXIBLE MEMBRANE.

Inventors

  • 👤 Yoon Lee Jae

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 12:36
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150351; A61B5/150374; A61B5/150381; A61B5/150389; A61B5/150473; A61B5/150755; A61B5/150763; A61B5/150786; A61B5/153; A61B5/154

Claims Analysis

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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-09-24 1977-03-26 1977-09-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-09-24 1981-03-26 1981-09-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-09-24 1985-03-26 1985-09-25 $7700.00 Window Closed / Lapsed

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