Granted Patent
Utility
US 4,368,641 · App. 06/229,917
Out-of-round detector
Inventor:
Francis McLeod
Patented Case
View Patent ↗
Granted: Jan 18, 1983
Filed: Jan 30, 1981
Inventor
Francis McLeod
Assignee (at issue)
Powers Manufacturing, 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.