Granted Patent
Utility
US 4,681,111 · App. 06/720,556
Analog and digital telemetry system for an implantable device
Inventor:
Sergiu Silvian
Patented Case
View Patent ↗
Granted: Jul 21, 1987
Filed: Apr 5, 1985
Inventor
Sergiu Silvian
Assignee (at issue)
Siemens 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.