Granted Patent
Utility
US 5,512,071 · App. 08/202,066
Water soluble blast media containing surfactant
Inventors:
Benny S. Yam, Amy L. Joseph, Anthony E. Winston, Keith A. Jones
Patented Case
View Patent ↗
Granted: Apr 30, 1996
Filed: Feb 25, 1994
Inventors
Benny S. Yam
Amy L. Joseph
Anthony E. Winston
Keith A. Jones
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.