Granted Patent
Utility
US 5,676,932 · App. 08/593,175
Silica abrasive compositions
Inventors:
Satish K. Wason, David E. Rice
Patented Case
View Patent ↗
Granted: Oct 14, 1997
Filed: Feb 1, 1996
Inventors
Satish K. Wason
David E. Rice
Assignee (at issue)
J.M. Huber 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.