Granted Patent
Utility
US 4,856,619 · App. 07/202,614
Aircraft wheel drive key and heatshield assembly
Inventor:
Don W. Petersen
Patented Case
View Patent ↗
Granted: Aug 15, 1989
Filed: Jun 6, 1988
Inventor
Don W. Petersen
Assignee (at issue)
L'ORÉAL
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.