Granted Patent
Utility
US 5,863,883 · App. 08/722,461
Slurry cleaning process
Inventors:
Benny S. Yam, Robert C. Jorgensen, William E. Spears, Jr.
Patented Case
View Patent ↗
Granted: Jan 26, 1999
Filed: Sep 27, 1996
Inventors
Benny S. Yam
Robert C. Jorgensen
William E. Spears, Jr.
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.