Granted Patent
Utility
US 4,835,102 · App. 07/032,848
Tissue equivalent test systems
Inventors:
Eugene Bell, Crispin Weinberg
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Mar 31, 1987
Inventors
Eugene Bell
Crispin Weinberg
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.