Granted Patent
Utility
US 5,152,840 · App. 07/776,683
Coating method and facility for vehicle structural components
Inventor:
Phillip C. Ruehl
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Oct 11, 1991
Inventor
Phillip C. Ruehl
Assignee (at issue)
A. O. Smith 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.