Granted Patent
Utility
US 4,292,188 · App. 06/044,630
Non-abrasive bauxite-based fire retardant
Inventors:
Joseph Barone, Sergio A. Loynaz, Frederick W. Bauer
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Jun 1, 1979
Inventors
Joseph Barone
Sergio A. Loynaz
Frederick W. Bauer
Assignee (at issue)
LOCKHEED MARTIN 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.