Granted Patent
Utility
US 4,901,726 · App. 07/355,275
Rate-responsive, distributed-rate pacemaker
Inventor:
James Christopher Hansen
Patented Case
View Patent ↗
Granted: Feb 20, 1990
Filed: May 22, 1989
Inventor
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.