Granted Patent
Utility
US 6,676,858 · App. 10/032,595
Colorant liquid, method of use, and wildland fire retardant liquids containing same
Inventors:
Howard L. Vandersall, Gary H. Kegeler
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Dec 26, 2001
Inventors
Howard L. Vandersall
Gary H. Kegeler
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.