Granted Patent
Utility
US 5,877,253 · App. 08/670,969
Method of preparing inorganic pigment dispersions
Inventors:
Bruce Matta, Samuel A. Firman, George A. Smith, Reuben H. Grinstein
Patented Case
View Patent ↗
Granted: Mar 2, 1999
Filed: Jun 26, 1996
Inventors
Bruce Matta
Samuel A. Firman
George A. Smith
Reuben H. Grinstein
Assignee (at issue)
Henkel Limited
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.