Granted Patent
Utility
US 4,717,504 · App. 06/882,821
Reflectance standard
Inventor:
Ralph S. Hernicz
Patented Case
View Patent ↗
Granted: Jan 5, 1988
Filed: Jul 7, 1986
Inventor
Ralph S. Hernicz
Assignee (at issue)
Miles 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.