Granted Patent
Utility
US 4,640,641 · App. 06/863,816
Piston pin construction and method for forming same
Inventor:
Thomas C. Edelmayer
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: May 12, 1986
Inventor
Thomas C. Edelmayer
Assignee (at issue)
Teledyne Continental Motors
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.