Granted Patent
Utility
US 5,042,499 · App. 07/561,575
Noninvasive electrocardiographic method of real time signal processing for obtaining and displaying instantaneous fetal heart rate and fetal heart rate beat-to-beat variability
Inventors:
Thomas Herbert Frank, Richard K. Gibbs, Robert Lee Wells
Patented Case
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Granted: Aug 27, 1991
Filed: Aug 2, 1990
Inventors
Thomas Herbert Frank
Richard K. Gibbs
Robert Lee Wells
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.