Granted Patent
Utility
US 6,035,753 · App. 08/711,355
Perforation assemblies having variable cut to tie ratios for multi-ply forms
Inventor:
James B. Coffey
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Sep 5, 1996
Inventor
James B. Coffey
Assignee (at issue)
NCR Corporation
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.