Granted Patent
Utility
US 4,883,331 · App. 07/221,120
Method of and structure for the joining of substantially rigid parts together
Inventor:
Craig Mengel
Patented Case
View Patent ↗
Granted: Nov 28, 1989
Filed: Jul 19, 1988
Inventor
Craig Mengel
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.