Granted Patent
Utility
US 5,818,955 · App. 08/859,626
Document and signature verification system and method
Inventors:
Christopher Paul Kenneth Smithies, Jeremy M. Newman
Patented Case
View Patent ↗
Granted: Oct 6, 1998
Filed: May 20, 1997
Inventors
Christopher Paul Kenneth Smithies
Jeremy M. Newman
Assignee (at issue)
PenOp Ltd.
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.