Granted Patent
Utility
US 6,209,923 · App. 09/291,537
Security document and authentication scheme
Inventors:
Daniel Thaxton, William H. Mowry, Jr., Russell E. Hill
Patented Case
View Patent ↗
Granted: Apr 3, 2001
Filed: Apr 14, 1999
Inventors
Daniel Thaxton
William H. Mowry, Jr.
Russell E. Hill
Assignee (at issue)
Standard Register, 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.