Granted Patent
Utility
US 4,757,892 · App. 07/067,525
Aligning and centering devices for arms of fork-shaped plate carriers during loading and unloading of plates
Inventor:
Hartmut Wenger
Patented Case
View Patent ↗
Granted: Jul 19, 1988
Filed: Jun 29, 1987
Inventor
Hartmut Wenger
Assignee (at issue)
Ciba-Geigy
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.