Granted Patent
Utility
US 4,298,429 · App. 06/076,410
Means for effecting cross direction fiber orientation in a papermaking machine headbox
Inventors:
Richard E. Hergert, Jan I. Bergstrom
Patented Case
View Patent ↗
Granted: Nov 3, 1981
Filed: Sep 17, 1979
Inventors
Richard E. Hergert
Jan I. Bergstrom
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.