Granted Patent
Utility
US 6,009,401 · App. 09/055,269
Relicensing of electronically purchased software
Inventor:
Cay S. Horstmann
Patented Case
View Patent ↗
Granted: Dec 28, 1999
Filed: Apr 6, 1998
Inventor
Cay S. Horstmann
Assignee (at issue)
Preview Systems
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.