Granted Patent
Utility
US 4,730,313 · App. 06/897,556
Access circuit diagnostics for integrated services digital network
Inventors:
Jack Stephenson, Jay Jayapalan, Ming-Luh Kao, Charles R. Baugh, Jerry A. Miller
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Aug 18, 1986
Inventors
Jack Stephenson
Jay Jayapalan
Ming-Luh Kao
Charles R. Baugh
Jerry A. Miller
Assignee (at issue)
Racal Data Communications, 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.