Granted Patent
Utility
US 5,449,356 · App. 07/779,101
Multifunctional probe for minimally invasive surgery
Inventors:
Harold J. Walbrink, Paul P. Burek, William Bowers, Donald L. Emmons, III
Patented Case
View Patent ↗
Granted: Sep 12, 1995
Filed: Oct 18, 1991
Inventors
Harold J. Walbrink
Paul P. Burek
William Bowers
Donald L. Emmons, III
Assignee (at issue)
Birtcher Medical Systems, 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.