Granted Patent
Utility
US 4,235,667 · App. 06/028,227
Method of and means for attaining uniformity in paper webs produced on a roll former
Inventors:
Jan I. Bergstrom, Richard E. Hergert
Patented Case
View Patent ↗
Granted: Nov 25, 1980
Filed: Apr 9, 1979
Inventors
Jan I. Bergstrom
Richard E. Hergert
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.