Granted Patent
Utility
US 5,440,758 · App. 08/226,537
Method of preventing unauthorized access to a wireless communication system
Inventors:
Gary W. Grube, Timothy W. Markison
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: Apr 12, 1994
Inventors
Gary W. Grube
Timothy W. Markison
Assignee (at issue)
Motorola, 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.