Granted Patent
Utility
US 5,332,447 · App. 08/006,659
Method of cleaning using a blast media containing a surfactant-clathrate compound
Inventors:
Anthony E. Winston, Benny S. Yam, Keith A. Jones
Patented Case
View Patent ↗
Granted: Jul 26, 1994
Filed: Jan 21, 1993
Inventors
Anthony E. Winston
Benny S. Yam
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.