Granted Patent
Utility
US 4,593,547 · App. 06/748,971
Hydraulic overload control system for power presses
Inventor:
Francis E. Heiberger
Patented Case
View Patent ↗
Granted: Jun 10, 1986
Filed: Jun 26, 1985
Inventor
Francis E. Heiberger
Assignee (at issue)
Danly Machine 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.