Granted Patent
Utility
US 6,682,437 · App. 10/047,487
Static unbalance-type balance shafts with axis alignment preservation
Inventors:
David L. Killion, Allen Hale
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Jan 14, 2002
Inventors
David L. Killion
Allen Hale
Assignee (at issue)
Metaldyne Machining and Assembly Company, 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.