Granted Patent
Utility
US 6,269,268 · App. 07/613,466
Rate-responsive pacemaker with closed-loop control
Inventors:
Francis John Callaghan, William Vollmann
Patented Case
View Patent ↗
Granted: Jul 31, 2001
Filed: Nov 7, 1990
Inventors
Francis John Callaghan
William Vollmann
Assignee (at issue)
PACESETTER, INC.
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.