Granted Patent
Utility
US 5,155,510 · App. 07/811,711
Digital sound system for motion pictures with analog sound track emulation
Inventor:
Terry D. Beard
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Dec 20, 1991
Inventor
Terry D. Beard
Assignee (at issue)
Digital Theater Systems, 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.