Granted Patent
Utility
US 5,003,615 · App. 07/278,400
Optoelectronic system for determining surface irregularities of a workpiece having a nominally plane reflective surface
Inventor:
Peter Seitz
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Dec 1, 1988
Inventor
Peter Seitz
Assignee (at issue)
Harris Semiconductor Patents, 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.