Granted Patent
Utility
US 4,055,101 · App. 05/687,806
Roll fed rotary web device with improved perforator
Inventor:
Joseph M. Collins
Patented Case
View Patent ↗
Granted: Oct 25, 1977
Filed: May 19, 1976
Inventor
Joseph M. Collins
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.