Granted Patent
Utility
US 5,311,586 · App. 07/786,168
Dynamic routing-administration
Inventors:
Frank J. Bogart, Bruce D. Butterfield, David Chavez, Henry C. Ditmer, Frederick R. Fix, Larry J. Hardouin, Nancy K. Schmidt, Linda L. Thomson
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Oct 31, 1991
Inventors
Frank J. Bogart
Bruce D. Butterfield
David Chavez
Henry C. Ditmer
Frederick R. Fix
Larry J. Hardouin
Nancy K. Schmidt
Linda L. Thomson
Assignee (at issue)
AT&T Bell Laboratories
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.