Granted Patent
Utility
US 5,538,009 · App. 08/278,413
Biopsy needle assembly
Inventors:
John Byrne, Jan L. Como, Gregory D. Volan, Stephen Kuehn, Terrence Snyder, T. Michael Dennehey, David A. Winchell
Patented Case
View Patent ↗
Granted: Jul 23, 1996
Filed: Jul 21, 1994
Inventors
John Byrne
Jan L. Como
Gregory D. Volan
Stephen Kuehn
Terrence Snyder
T. Michael Dennehey
David A. Winchell
Assignee (at issue)
Baxter International 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.