Granted Patent
Utility
US 5,205,834 · App. 07/903,410
Two-way outdwelling slit valving of medical liquid flow through a cannula and methods
Inventors:
H. Robert Moorehead, Thomas A. Wiita
Patented Case
View Patent ↗
Granted: Apr 27, 1993
Filed: Jun 24, 1992
Inventors
H. Robert Moorehead
Thomas A. Wiita
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.