Granted Patent
Utility
US 4,519,404 · App. 06/537,252
Endocardial electrode lead with conical fixation mechanism
Inventor:
John J. Fleischhacker
Patented Case
View Patent ↗
Granted: May 28, 1985
Filed: Sep 28, 1983
Inventor
John J. Fleischhacker
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.