Granted Patent
Utility
US 4,816,668 · App. 07/131,148
Mold number reader with field optics photodetector
Inventors:
Reade Williams, Paul F. Scott
Patented Case
View Patent ↗
Granted: Mar 28, 1989
Filed: Dec 10, 1987
Inventors
Reade Williams
Paul F. Scott
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.