← Back to Patent Explorer
US3859526A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for detecting

Assignee: Bio Rad Laboratories Inc
•
Filing: 1973-10-23
•
Granted: 1975-01-07
•
Expires: 1993-10-23
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract 1. APPARATUS FOR DETERMINING CHARCTERISTICS OF A SAMPLE OF RADIANTLY EMISSIVE SUBMICRON-SIZED PARTICLES SUSPENDED IN A FLUID MEDIUM; AND COMPRISING IN COMBINATION; MEANS FOR DETECTING RADIANT EMISSION FROM SAID PARTICLES, MEAND FOR CONVERTING SAID RADIANT EMISSION INTO AN ELECTRICAL SIGNAL, MEANS FOR DETERMINING THE VALUE OF THE AMPLITUDE OF ANY SUBSTANTIALLY STEADY-STATE COMPONENT OF SAID SIGNAL, MEANS FOR DETERMINING THE ROOT MEANS SQUARE VALUE OF THE AMPLITUDE OF ANY OSCILLATORY COMPONENTS OF SAID SIGNAL, AND MEANS FOR DETERMINING, AS A FUNCTION OF THE VALUES OF BOTH SAID STEADY STATE AND OSCILLATORY COMPONETS, EITHER OR BOTH OF THE VALUES OF THE AVERAGE MASS PER UNIT PARTICLE AND THE STATISTICAL DISTRIBUTION OF SAID PARTICLES IN SAID SAMPLE.

Inventors

  • 👤 Tomas Hirschfeld

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 07:01
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/64; G01N21/6408; G01N15/00; G01N15/02; G01N15/0205; G06; G06F; G06F17/00; G06F17/10; G06F17/18; Y; Y10; Y10S; Y10S435/00; Y10S435/808

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US3497690A Cited
US3657537A Cited
US3727048A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-01-06 1978-07-08 1979-01-07 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-01-06 1982-07-08 1983-01-07 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-01-06 1986-07-08 1987-01-07 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag