Granted Patent
Utility
US 6,477,238 · App. 09/660,395
Loop certification and measurement for ADSL
Inventors:
Allan Schneider, Frederick G. Hofman, James E. Sylvester
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Sep 12, 2000
Inventors
Allan Schneider
Frederick G. Hofman
James E. Sylvester
Assignee (at issue)
Verizon Services 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.