Granted Patent
Utility
US 4,590,732 · App. 06/569,245
Anchor device
Inventor:
Ellis A. Hallman
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Jan 9, 1984
Inventor
Ellis A. Hallman
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.