Granted Patent
Utility
US 4,189,735 · App. 05/881,023
Record playback apparatus and information record therefor
Inventors:
Alan E. Bell, Robert A. Bartolini, Rabah Shahbender, Brown F. Williams
Patented Case
View Patent ↗
Granted: Feb 19, 1980
Filed: Feb 24, 1978
Inventors
Alan E. Bell
Robert A. Bartolini
Rabah Shahbender
Brown F. Williams
Assignee (at issue)
RCA 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.