Granted Patent
Utility
US 5,428,979 · App. 08/245,860
Apparatus for straightening coupling shafts
Inventors:
Kenneth H. Knipp, Margot L. Hoffman
Patented Case
View Patent ↗
Granted: Jul 4, 1995
Filed: May 19, 1994
Inventors
Kenneth H. Knipp
Margot L. Hoffman
Assignee (at issue)
DANA LIMITED
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.