Granted Patent
Utility
US 4,496,681 · App. 06/221,858
Fire retardant concentrate
Inventor:
Frank E. Lordi
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Dec 31, 1980
Inventor
Frank E. Lordi
Assignee (at issue)
Atlantic Richfield Company
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.