Granted Patent
Utility
US 4,664,820 · App. 06/792,146
Preactivated organophilic clay gellant lubricating grease thickened with preactivated organophilic clay gellant and process for preparing preactivated organophilic clay gellants
Inventors:
Edward D. Magauran, Charles A. Cody, William W. Reichert, Mauriello D. Kieke, Steven J. Kemnetz, Araxi Chiavoni
Patented Case
View Patent ↗
Granted: May 12, 1987
Filed: Oct 28, 1985
Inventors
Edward D. Magauran
Charles A. Cody
William W. Reichert
Mauriello D. Kieke
Steven J. Kemnetz
Araxi Chiavoni
Assignee (at issue)
NL Industries, 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.