Granted Patent
Utility
US 6,484,026 · App. 09/442,244
Process for clearing a SIM card
Inventor:
Frank Hägebarth
Patented Case
View Patent ↗
Granted: Nov 19, 2002
Filed: Nov 17, 1999
Inventor
Frank Hägebarth
Assignee (at issue)
ALCATEL
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.