Granted Patent
Utility
US 6,324,519 · App. 09/268,520
Advertisement auction system
Inventor:
Charles A. Eldering
Patented Case
View Patent ↗
Granted: Nov 27, 2001
Filed: Mar 12, 1999
Inventor
Charles A. Eldering
Assignee (at issue)
Expanse Networks, 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.