Granted Patent
Utility
US 4,901,725 · App. 07/150,038
Minute volume rate-responsive pacemaker
Inventors:
Tibor A. Nappholz, John R. Hamilton, James Christopher Hansen
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: Jan 29, 1988
Inventors
Tibor A. Nappholz
John R. Hamilton
James Christopher Hansen
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.