Granted Patent
Utility
US 4,867,435 · App. 07/112,294
Apparatus for stacking folded sheet material
Inventors:
John Cogswell, Robert Fokos
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Oct 26, 1987
Inventors
John Cogswell
Robert Fokos
Assignee (at issue)
Sequa 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.