Granted Patent
Utility
US 5,202,825 · App. 07/727,021
Transaction control system including portable data terminal and mobile customer service station
Inventors:
Phillip Miller, Steven E. Koenck, George E. Hanson, Roger L. Wolf
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Jul 8, 1991
Inventors
Phillip Miller
Steven E. Koenck
George E. Hanson
Roger L. Wolf
Assignee (at issue)
Norand Corporation
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.