Granted Patent
Utility
US 4,852,983 · App. 07/099,103
Distance simulator
Inventor:
Michael E. Fein
Patented Case
View Patent ↗
Granted: Aug 1, 1989
Filed: Sep 21, 1987
Inventor
Michael E. Fein
Assignee (at issue)
Spectra-Physics, 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.