Granted Patent
Utility
US 4,257,294 · App. 05/973,883
Apparatus for severing sheet material
Inventor:
F. Raymond Stoveken
Patented Case
View Patent ↗
Granted: Mar 24, 1981
Filed: Dec 28, 1978
Inventor
F. Raymond Stoveken
Assignee (at issue)
Marcal Paper Mills, 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.