Granted Patent
Utility
US 4,620,724 · App. 06/812,621
Binding strips for rectangular hole punched paper
Inventors:
William H. Abildgaard, Elmer G. Szanto
Patented Case
View Patent ↗
Granted: Nov 4, 1986
Filed: Dec 23, 1985
Inventors
William H. Abildgaard
Elmer G. Szanto
Assignee (at issue)
VeloBind, 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.