Granted Patent
Utility
US 4,457,652 · App. 06/253,783
Composite buckling blind fastener
Inventor:
John D. Pratt
Patented Case
View Patent ↗
Granted: Jul 3, 1984
Filed: Apr 13, 1981
Inventor
John D. Pratt
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.