Granted Patent
Utility
US 4,641,664 · App. 06/723,081
Endocardial electrode arrangement
Inventor:
Lars Botvidsson
Patented Case
View Patent ↗
Granted: Feb 10, 1987
Filed: Apr 15, 1985
Inventor
Lars Botvidsson
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.