Granted Patent
Utility
US 5,902,392 · App. 08/675,614
Paint for nonhazardous removal of heavy metals and method for using the same
Inventors:
Michael L. Henkelman, Michael Bruce Prenosil, Robert Todd Meyers
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Jul 3, 1996
Inventors
Michael L. Henkelman
Michael Bruce Prenosil
Robert Todd Meyers
Assignees (at issue)
RMT LIMITED
HOFFER'S COATINGS, 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.