Granted Patent
Utility
US 4,697,949 · App. 06/860,649
Plug, socket and plug-and-socket coupling thereof for temporarily attaching an implement to a handle
Inventor:
Antonio Perez
Patented Case
View Patent ↗
Granted: Oct 6, 1987
Filed: May 7, 1986
Inventor
Antonio Perez
Assignee (at issue)
Firma Vileda GmbH
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.