Granted Patent
Utility
US 4,803,114 · App. 06/942,083
PVC film for the production of identity cards
Inventor:
Martin Schledorn
Patented Case
View Patent ↗
Granted: Feb 7, 1989
Filed: Dec 15, 1986
Inventor
Martin Schledorn
Assignee (at issue)
Internationale Otrool Maatschappij Octropa B.V.
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.