Granted Patent
Utility
US 4,849,338 · App. 06/736,485
Simultaneous calibration heterogeneous immunoassay
Inventors:
David J. Litman, Edwin F. Ullman
Patented Case
View Patent ↗
Granted: Jul 18, 1989
Filed: May 21, 1985
Inventors
David J. Litman
Edwin F. Ullman
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.