Granted Patent
Utility
US 4,691,621 · App. 06/869,591
Piston-and-cylinder arrangement with radially-yieldable piston head
Inventor:
Larry D. Hall
Patented Case
View Patent ↗
Granted: Sep 8, 1987
Filed: Jun 2, 1986
Inventor
Larry D. Hall
Assignee (at issue)
Moog Inc.
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.