Granted Patent
Utility
US 4,771,417 · App. 06/909,012
High speed modem
Inventors:
Ronald K. Maxwell, Karl J. Zorzi, Harunori Yoshikawa, Venkat S. Prasad, Fred G. Smith
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Sep 18, 1986
Inventors
Ronald K. Maxwell
Karl J. Zorzi
Harunori Yoshikawa
Venkat S. Prasad
Fred G. Smith
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.