Granted Patent
Utility
US 4,448,803 · App. 06/315,852
Process for manufacturng a polychelate coating
Inventors:
Jurgen Gauger, Jean M. Hinden, Michael Katz
Patented Case
View Patent ↗
Granted: May 15, 1984
Filed: Oct 19, 1981
Inventors
Jurgen Gauger
Jean M. Hinden
Michael Katz
Assignee (at issue)
Diamond Shamrock 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.