Granted Patent
Utility
US 4,786,801 · App. 07/060,701
Finish Leak Detector having vertically movable light source
Inventor:
Timothy W. Shay
Patented Case
View Patent ↗
Granted: Nov 22, 1988
Filed: Jul 21, 1987
Inventor
Timothy W. Shay
Assignee (at issue)
Emhart Industries, 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.