Granted Patent
Utility
US 4,991,503 · App. 07/398,134
High pressure intaglio cantilever press
Inventor:
Robert W. Morner
Patented Case
View Patent ↗
Granted: Feb 12, 1991
Filed: Aug 24, 1989
Inventor
Robert W. Morner
Assignee (at issue)
The Hamilton Tool 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.