Granted Patent
Utility
US 4,757,540 · App. 06/544,493
Method for audio editing
Inventor:
Neil Roland Davis
Patented Case
View Patent ↗
Granted: Jul 12, 1988
Filed: Oct 24, 1983
Inventor
Neil Roland Davis
Assignee (at issue)
E-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.