Granted Patent
Utility
US 5,123,728 · App. 07/672,048
Rear screen video projection system for aircraft passenger entertainment
Inventors:
James H. Gradin, Donovan T. Nguyen
Patented Case
View Patent ↗
Granted: Jun 23, 1992
Filed: Mar 18, 1991
Inventors
James H. Gradin
Donovan T. Nguyen
Assignee (at issue)
Sony Trans Com 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.