Granted Patent
Utility
US 4,352,200 · App. 06/082,849
Wireless aircraft passenger audio entertainment system
Inventor:
Martin H. Oxman
Patented Case
View Patent ↗
Granted: Sep 28, 1982
Filed: Oct 9, 1979
Inventor
Martin H. Oxman
Assignee (at issue)
Bell and Howell, LLC
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.