Granted Patent
Utility
US 4,098,876 · App. 05/735,740
Reverse sandwich immunoassay
Inventors:
Roger N. Piasio, James W. Ryan, James E. Woiszwillo
Patented Case
View Patent ↗
Granted: Jul 4, 1978
Filed: Oct 26, 1976
Inventors
Roger N. Piasio
James W. Ryan
James E. Woiszwillo
Assignee (at issue)
Corning Glass Works
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.