Granted Patent
Utility
US 6,197,105 · App. 09/466,883
Hydrous clay slurry mixture containing a silane-treated clay
Inventors:
Gary M. Freeman, Carl J. Marshall, Jr., Walter O. Lackey, Masao Onizawa
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Dec 20, 1999
Inventors
Gary M. Freeman
Carl J. Marshall, Jr.
Walter O. Lackey
Masao Onizawa
Assignees (at issue)
J.M. Huber Corporation
Sanyo Trading Company, Ltd.
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.