Granted Patent
Utility
US 4,339,338 · App. 06/189,630
Method of reducing the strength of adhesion of solid particulate materials to metal surfaces
Inventors:
Robert J. Blake, Joseph E. Sokolik, Jr., Samuel Sterman
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: Sep 22, 1980
Inventors
Robert J. Blake
Joseph E. Sokolik, Jr.
Samuel Sterman
Assignee (at issue)
Union Carbide 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.