Granted Patent
Utility
US 5,308,334 · App. 07/842,443
Closed system for iv site flush
Inventor:
Gregory E. Sancoff
Patented Case
View Patent ↗
Granted: May 3, 1994
Filed: Feb 27, 1992
Inventor
Gregory E. Sancoff
Assignee (at issue)
Block Medical, Inc.
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.