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US3575812A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for the detection of virus

Assignee: Labcorp Early Development Laboratories Inc
•
Filing: 1968-11-07
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Granted: 1971-04-20
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Expires: 1988-11-07
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Abstract

Abstract THE PRESENCE OR ABSENCE OF VIRUS MAY BE DETECTED BY INOCULATING A TISSUE CULTURE, WHICH IS AN APPROPRIATE HOST FOR THE SUSPECTED VIRUS, WITH A SAMPLE OF THE MATERIAL SUSPECTED TO CONTAIN A VIRUS AND THEN COMPARING THE AMOUNT OF ADENOSINE TRIPHOSPHATE IN THE CULTURE BEFORE AND AFTER A PERIOD OF INCUBATION. THE ADENOSINE TRIPHOSPHATE CONTENT OF THE INOCULATED TISSUE CULTURE IS DETERMINED BY REACTING THE TISSUE CULTURE WITH A MIXTURE COMPRISING LUCIFERIN, LUCIFERASE, AND A CATION IN THE PRESENCE OF OXYGEN AND MONITORING THE AMOUNT OF BIOLUMINESCENCE GIVEN OFF THEREBY. A SIGNIFICANT CHANGE IN THE AMOUNT OF BIOLUMINESCENE AFTER INCUBATION INDICATES THE PRESENCE OF VIRUS, WHEREAS THE ABSENCE OF VIRUS IS INDICATED BY NO SIGNIFICANT CHANGE.

Inventors

  • 👤 Emmett W Chappelle

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 11:25
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/66; C12Q1/70

Claims Analysis

Total Claims: 0
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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) 1974-04-19 1974-10-19 1975-04-20 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-04-19 1978-10-19 1979-04-20 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-04-19 1982-10-19 1983-04-20 $7700.00 Window Closed / Lapsed

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