Granted Patent
Utility
US 5,140,735 · App. 07/777,766
Die member for attaching a self-piercing and riveting fastener
Inventor:
Harold A. Ladouceur
Patented Case
View Patent ↗
Granted: Aug 25, 1992
Filed: Oct 11, 1991
Inventor
Harold A. Ladouceur
Assignee (at issue)
Multifastener 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.