Granted Patent
Utility
US 4,867,480 · App. 07/197,049
Method of making pop-ups with placard display
Inventor:
John K. Volkert
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: May 20, 1988
Inventor
John K. Volkert
Assignee (at issue)
One Up, 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.