Granted Patent
Utility
US 5,669,945 · App. 08/723,351
Abrasive blast media containing corrosion inhibitor
Inventor:
Benny S. Yam
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Sep 30, 1996
Inventor
Benny S. Yam
Assignee (at issue)
Church & Dwight Co., Inc.
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.