Granted Patent
Utility
US 5,583,323 · App. 08/147,977
Calibration of graphic data-acquisition tracking system
Inventors:
Donald H. Zurstadt, Samuel W. Mallicoat, Scott Wilson
Patented Case
View Patent ↗
Granted: Dec 10, 1996
Filed: Nov 5, 1993
Inventors
Donald H. Zurstadt
Samuel W. Mallicoat
Scott Wilson
Assignee (at issue)
Microfield Graphics, 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.