Granted Patent
Utility
US 4,392,757 · App. 06/152,206
Backlash and runout compensator for lead screw drives
Inventors:
Clifford M. Denny, Charles W. Wampler, II
Patented Case
View Patent ↗
Granted: Jul 12, 1983
Filed: May 22, 1980
Inventors
Clifford M. Denny
Charles W. Wampler, II
Assignee (at issue)
International Business Machines 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.