Granted Patent
Utility
US 6,112,985 · App. 08/913,213
License-card-controlled chip card system
Inventor:
Markus Weinlaender
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Jan 16, 1998
Inventor
Markus Weinlaender
Assignee (at issue)
Siemens Aktiengesellschaft
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.