Granted Patent
Utility
US 6,301,405 · App. 09/468,052
Multi-channel fiber-optic rotary joint
Inventor:
Mitchel J. Keil
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Dec 20, 1999
Inventor
Mitchel J. Keil
Assignee (at issue)
The Board of Trustees of Western Michigan University
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.