Granted Patent
Utility
US 4,883,541 · App. 07/297,829
Nonchromate deoxidizer for aluminum alloys
Inventor:
Maher E. Tadros
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Jan 17, 1989
Inventor
Maher E. Tadros
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.