Granted Patent
Utility
US 4,880,463 · App. 07/307,666
Fluorine-free mold powders
Inventor:
Elie E. Saad
Patented Case
View Patent ↗
Granted: Nov 14, 1989
Filed: Feb 6, 1989
Inventor
Elie E. Saad
Assignee (at issue)
Mobay 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.