Granted Patent
Utility
US 4,740,993 · App. 06/907,584
Digital companding circuit
Inventor:
Milan Skubnik
Patented Case
View Patent ↗
Granted: Apr 26, 1988
Filed: Sep 15, 1986
Inventor
Milan Skubnik
Assignee (at issue)
Mitel 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.