Granted Patent
Utility
US 4,384,517 · App. 06/267,903
Full tonnage stop for hydraulic presses
Inventor:
Edwin A. Spanke
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: May 28, 1981
Inventor
Edwin A. Spanke
Assignee (at issue)
Gulf Eastern Manufacturing Company
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.