Granted Patent
Utility
US 5,855,989 · App. 08/773,994
Document with anti-forgery and anti-falsification means
Inventor:
Walter Mantegazza
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Dec 26, 1996
Inventor
Walter Mantegazza
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.