Granted Patent
Utility
US 6,750,463 · App. 09/515,266
Optical isolation apparatus and method
Inventor:
Carl W. Riley
Patented Case
View Patent ↗
Granted: Jun 15, 2004
Filed: Feb 29, 2000
Inventor
Carl W. Riley
Assignee (at issue)
HILL-ROM SERVICES, 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.