Granted Patent
Utility
US 4,770,177 · App. 06/830,089
Apparatus and method for adjusting heart/pacer relative to changes in venous diameter during exercise to obtain a required cardiac output.
Inventor:
Edward A. Schroeppel
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Feb 18, 1986
Inventor
Edward A. Schroeppel
Assignee (at issue)
Telectronic SA
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.