Granted Patent
Utility
US 4,819,253 · App. 07/194,343
Method for determining PCM coding law
Inventor:
Orni Petruschka
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: May 16, 1988
Inventor
Orni Petruschka
Assignee (at issue)
Bell Communications Research, 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.