Granted Patent
Utility
US 4,970,441 · App. 07/389,445
Brightness stabilizing control of a VF display
Inventors:
Raymond Lippmann, Michael J. Schnars, James E. Nelson
Patented Case
View Patent ↗
Granted: Nov 13, 1990
Filed: Aug 4, 1989
Inventors
Raymond Lippmann
Michael J. Schnars
James E. Nelson
Assignee (at issue)
DELCO ELECTRONICS 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.