Granted Patent
Utility
US 5,490,728 · App. 08/180,641
Non-contact optical techniques for measuring surface conditions
Inventors:
Charles W. Schietinger, Bruce E. Adams
Patented Case
View Patent ↗
Granted: Feb 13, 1996
Filed: Jan 12, 1994
Inventors
Charles W. Schietinger
Bruce E. Adams
Assignee (at issue)
Luxtron Corporation
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.