Granted Patent
Utility
US 6,745,327 · App. 09/244,243
Electronic certificate signature program
Inventor:
John H. Messing
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Feb 3, 1999
Inventor
John H. Messing
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.