Granted Patent
Utility
US 4,633,560 · App. 06/773,387
Self-attaching fastener, die set
Inventor:
Rudolph R. M. Muller
Patented Case
View Patent ↗
Granted: Jan 6, 1987
Filed: Sep 6, 1985
Inventor
Rudolph R. M. Muller
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.