Granted Patent
Utility
US 5,243,399 · App. 07/821,978
Alignment tool for endoscopes
Inventors:
Dale E. Koop, Michael Arnett
Patented Case
View Patent ↗
Granted: Sep 7, 1993
Filed: Jan 15, 1992
Inventors
Dale E. Koop
Michael Arnett
Assignee (at issue)
Coherent, 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.