Granted Patent
Utility
US 5,368,087 · App. 08/172,995
Hot box core making apparatus
Inventors:
William J. Rinz, Tirlochan S. Sandhu
Patented Case
View Patent ↗
Granted: Nov 29, 1994
Filed: Dec 27, 1993
Inventors
William J. Rinz
Tirlochan S. Sandhu
Assignee (at issue)
Ford Motor 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.