Granted Patent
Utility
US 4,752,169 · App. 06/724,111
Flush break blind bolt
Inventor:
John D. Pratt
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Apr 12, 1985
Inventor
John D. Pratt
Assignee (at issue)
Monogram Industries Inc.
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.