Granted Patent
Utility
US 4,521,521 · App. 06/474,483
Particle reagent size distribution measurements for immunoassay
Inventors:
Scot D. Abbott, Michael A. G. Luddy
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Mar 11, 1983
Inventors
Scot D. Abbott
Michael A. G. Luddy
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.