Granted Patent
Utility
US 4,315,073 · App. 06/088,684
Titration of serum influenza antibody using plaque reduction neutralization test
Inventors:
Karen K. Brown, Richard C. Stewart
Patented Case
View Patent ↗
Granted: Feb 9, 1982
Filed: Oct 26, 1979
Inventors
Karen K. Brown
Richard C. Stewart
Assignee (at issue)
Cutter Laboratories, Inc.
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.