Granted Patent
Utility
US 4,551,894 · App. 06/542,433
Urethane covered paper machine roll with vented interface between roll and cover
Inventor:
Albert W. Beucker
Patented Case
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Granted: Nov 12, 1985
Filed: Oct 17, 1983
Inventor
Albert W. Beucker
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.