Granted Patent
Utility
US 4,812,072 · App. 07/166,854
Torsion structural pivot
Inventor:
John J. Brooks
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Mar 11, 1988
Inventor
John J. Brooks
Assignee (at issue)
Santa Barbara Research Center
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.