Granted Patent
Utility
US 4,922,905 · App. 07/194,995
Dilatation catheter
Inventor:
Ernst Peter Strecker
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Mar 2, 1988
Inventor
Ernst Peter Strecker
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.