Granted Patent
Utility
US 6,216,331 · App. 09/318,647
Method for installing a fastener
Inventor:
Rudolf Muller
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: May 12, 1999
Inventor
Rudolf Muller
Assignee (at issue)
PROFIL Verbindungstechnik GmbH & Co. KG
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.