Granted Patent
Utility
US 6,094,500 · App. 09/022,804
Apparatus for authenticating sheets
Inventors:
Gary Ross, Philip Heelan
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Feb 13, 1998
Inventors
Gary Ross
Philip Heelan
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.