Granted Patent
Utility
US 5,408,467 · App. 07/892,086
Transmit-receive unit for digital loop carrier transmission systems
Inventors:
Mark M. Clougherty, Stuart Warmink
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Jun 2, 1992
Inventors
Mark M. Clougherty
Stuart Warmink
Assignee (at issue)
AT&T CORP.
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.