Granted Patent
Utility
US 4,199,559 · App. 05/766,279
Fluorescence quenching with immunological pairs in immunoassays
Inventors:
Edwin F. Ullman, Moshe Schwarzberg
Patented Case
View Patent ↗
Granted: Apr 22, 1980
Filed: Feb 7, 1977
Inventors
Edwin F. Ullman
Moshe Schwarzberg
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.