Granted Patent
Utility
US 5,515,242 · App. 08/316,756
Double confocal fiber optic light collector
Inventor:
John Li
Patented Case
View Patent ↗
Granted: May 7, 1996
Filed: Oct 3, 1994
Inventor
John Li
Assignee (at issue)
Ford Motor Company
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.