Granted Patent
Utility
US 5,424,839 · App. 08/022,707
Method and apparatus for aligning visual images with visual display devices
Inventors:
Jonathan L. Dugdale, Ross N. Lindly
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Mar 1, 1993
Inventors
Jonathan L. Dugdale
Ross N. Lindly
Assignee (at issue)
Hughes Training, 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.