Granted Patent
Utility
US 4,726,883 · App. 07/043,903
Apparatus for selectively moving the slice lip of a headbox
Inventor:
Robert Schroeder
Patented Case
View Patent ↗
Granted: Feb 23, 1988
Filed: Apr 27, 1987
Inventor
Robert Schroeder
Assignee (at issue)
Beloit 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.