Granted Patent
Utility
US 4,401,249 · App. 06/335,421
Automatic burster apparatus having a double bursting bar
Inventors:
Jack Kadlecik, Alvin M. Hill
Patented Case
View Patent ↗
Granted: Aug 30, 1983
Filed: Dec 29, 1981
Inventors
Jack Kadlecik
Alvin M. Hill
Assignee (at issue)
Burroughs, 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.