Granted Patent
Utility
US 4,878,048 · App. 07/230,641
Channel redundancy in a digital loop carrier system
Inventors:
Jeffrey L. Gottesman, Mark A. Dempsky, Donald E. Koch, Dev R. Rattan
Patented Case
View Patent ↗
Granted: Oct 31, 1989
Filed: Aug 10, 1988
Inventors
Jeffrey L. Gottesman
Mark A. Dempsky
Donald E. Koch
Dev R. Rattan
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.