Granted Patent
Utility
US 5,289,787 · App. 07/987,929
Multiple unit material processing apparatus
Inventor:
Roger D. Eshleman
Patented Case
View Patent ↗
Granted: Mar 1, 1994
Filed: Dec 9, 1992
Inventor
Roger D. Eshleman
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.