Granted Patent
Utility
US 5,850,520 · App. 08/673,988
Method and system for electronic publication distribution including return receipt
Inventors:
L. Joy Griebenow, Dale Steven Howard, Kim Lenger
Patented Case
View Patent ↗
Granted: Dec 15, 1998
Filed: Jul 1, 1996
Inventors
L. Joy Griebenow
Dale Steven Howard
Kim Lenger
Assignee (at issue)
Electric Data Systems 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.