Granted Patent
Utility
US 5,237,487 · App. 07/844,093
Transaction terminal having base module and portable module
Inventors:
Rian T. Dittmer, Donald L. Forsythe
Patented Case
View Patent ↗
Granted: Aug 17, 1993
Filed: Mar 2, 1992
Inventors
Rian T. Dittmer
Donald L. Forsythe
Assignee (at issue)
NCR 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.