Granted Patent
Utility
US 4,741,236 · App. 06/897,205
Apparatus for notching the back of a book
Inventor:
James S. Averill
Patented Case
View Patent ↗
Granted: May 3, 1988
Filed: Aug 18, 1986
Inventor
James S. Averill
Assignee (at issue)
Harris Graphics
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.