Granted Patent
Utility
US 4,521,147 · App. 06/397,018
Flush head blind fastener
Inventors:
John O. King, Jr., John O. King, III
Patented Case
View Patent ↗
Granted: Jun 4, 1985
Filed: Jul 12, 1982
Inventors
John O. King, Jr.
John O. King, III
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.