Granted Patent
Utility
US 5,558,708 · App. 08/438,781
System and method for dispersing pigment in cement based compositions
Inventors:
Charles J. Johansen, Jr., Ernest D. Hollas, Robert L. Vecchio, Hani Zoumut
Patented Case
View Patent ↗
Granted: Sep 24, 1996
Filed: May 11, 1995
Inventors
Charles J. Johansen, Jr.
Ernest D. Hollas
Robert L. Vecchio
Hani Zoumut
Assignee (at issue)
C-Cure 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.