Granted Patent
Utility
US 5,251,205 · App. 07/577,437
Multiple protocol routing
Inventors:
Ross W. Callon, Radia J. Perlman, Eric C. Rosen, John Harper
Patented Case
View Patent ↗
Granted: Oct 5, 1993
Filed: Sep 4, 1990
Inventors
Ross W. Callon
Radia J. Perlman
Eric C. Rosen
John Harper
Assignee (at issue)
Digital Equipment 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.