Granted Patent
Utility
US 4,866,543 · App. 07/095,491
Multiple slave video tape reproduction system
Inventors:
J. Carl Cooper, John P. Yu
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Sep 11, 1987
Inventors
J. Carl Cooper
John P. Yu
Assignee (at issue)
Electro Sound, 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.