Granted Patent
Utility
US 4,256,834 · App. 06/028,640
Fluorescent scavenger particle immunoassay
Inventors:
Robert F. Zuk, Edwin F. Ullman
Patented Case
View Patent ↗
Granted: Mar 17, 1981
Filed: Apr 9, 1979
Inventors
Robert F. Zuk
Edwin F. Ullman
Assignee (at issue)
Syva 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.