Granted Patent
Utility
US 6,802,994 · App. 09/723,567
Fire retardant compositions containing ammonium polyphosphate and iron additives for corrosion inhibition
Inventors:
Gary H. Kegeler, Howard L. Vandersall
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Nov 28, 2000
Inventors
Gary H. Kegeler
Howard L. Vandersall
Assignee (at issue)
Astaris L.L.C.
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.