Granted Patent
Utility
US 5,008,657 · App. 07/304,166
Self adjusting matrix display
Inventors:
Charles M. Hanson, Virginia N. MacDonald
Patented Case
View Patent ↗
Granted: Apr 16, 1991
Filed: Jan 31, 1989
Inventors
Charles M. Hanson
Virginia N. MacDonald
Assignee (at issue)
Varo 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.