Granted Patent
Utility
US 4,949,355 · App. 07/300,451
Test access system for a digital loop carrier system
Inventors:
Harry J. Dyke, Donald E. Koch
Patented Case
View Patent ↗
Granted: Aug 14, 1990
Filed: Jan 23, 1989
Inventors
Harry J. Dyke
Donald E. Koch
Assignee (at issue)
Rockwell International 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.