Granted Patent
Utility
US 4,420,371 · App. 06/381,899
Energy absorbers for vibrating headboxes
Inventors:
Carl B. Dahl, Jere W. Crouse
Patented Case
View Patent ↗
Granted: Dec 13, 1983
Filed: May 25, 1982
Inventors
Carl B. Dahl
Jere W. Crouse
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.