Granted Patent
Utility
US 6,434,537 · App. 08/284,708
Cellular telephone billing management system
Inventor:
Gary J. Grimes
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Aug 1, 1994
Inventor
Gary J. Grimes
Assignee (at issue)
LUCENT TECHNOLOGIES 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.