Granted Patent
Utility
US 4,679,085 · App. 06/678,165
Digital integrated electronic storage system for video and audio playback
Inventors:
Robert R. Johnson, Walter E. Chapelle
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Dec 4, 1984
Inventors
Robert R. Johnson
Walter E. Chapelle
Assignee (at issue)
Energy Conversion Devices, 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.