Granted Patent
Utility
US 5,396,880 · App. 07/865,349
Endoscope for direct visualization of the spine and epidural space
Inventors:
Jonathan Kagan, Roger White, David L. Brumfield
Patented Case
View Patent ↗
Granted: Mar 14, 1995
Filed: Apr 8, 1992
Inventors
Jonathan Kagan
Roger White
David L. Brumfield
Assignee (at issue)
Danek 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.