Granted Patent
Utility
US 4,790,318 · App. 06/874,597
Cardiac pacer for pacing a human heart
Inventors:
Hakan Elmqvist, Anders Lekholm, Sven-Erik Hedberg, David C. Amundson
Patented Case
View Patent ↗
Granted: Dec 13, 1988
Filed: Jun 16, 1986
Inventors
Hakan Elmqvist
Anders Lekholm
Sven-Erik Hedberg
David C. Amundson
Assignee (at issue)
Siemens Aktiengesellschaft
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.