Granted Patent
Utility
US 5,950,381 · App. 08/840,889
Device for passing a lengthy object through an opening in a wall
Inventor:
Michael Stansbie
Patented Case
View Patent ↗
Granted: Sep 14, 1999
Filed: Apr 17, 1997
Inventor
Michael Stansbie
Assignee (at issue)
ALCATEL
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.