Granted Patent
Utility
US 4,608,246 · App. 06/532,464
Testing for a blood group immunological reaction
Inventors:
William L. Bayer, Frederick V. Plapp, Malcolm L. Beck, Lyle T. Sinor, William M. Coenen
Patented Case
View Patent ↗
Granted: Aug 26, 1986
Filed: Sep 15, 1983
Inventors
William L. Bayer
Frederick V. Plapp
Malcolm L. Beck
Lyle T. Sinor
William M. Coenen
Assignee (at issue)
IMMUCOR, 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.