Granted Patent
Utility
US 5,137,808 · App. 07/388,176
Immunoassay device
Inventors:
Edwin F. Ullman, Pyare Khanna, Rohan Peries
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Jul 31, 1989
Inventors
Edwin F. Ullman
Pyare Khanna
Rohan Peries
Assignee (at issue)
Syntex (U.S.A.) LLC
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.