Granted Patent
Utility
US 4,516,905 · App. 06/442,354
Roll clamp
Inventors:
J. N. Cavin, Kenneth A. Frees
Patented Case
View Patent ↗
Granted: May 14, 1985
Filed: Nov 17, 1982
Inventors
J. N. Cavin
Kenneth A. Frees
Assignee (at issue)
Hoover Universal, Inc.
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.