Granted Patent
Utility
US 4,833,958 · App. 07/135,494
Paper punching machine
Inventors:
William H. Abildgaard, Dale Ransom, Phillip M. Crudo
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Dec 21, 1987
Inventors
William H. Abildgaard
Dale Ransom
Phillip M. Crudo
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.