Granted Patent
Utility
US 5,493,758 · App. 08/374,194
Extension pole
Inventor:
Joseph A. Carmien
Patented Case
View Patent ↗
Granted: Feb 27, 1996
Filed: Jan 18, 1995
Inventor
Joseph A. Carmien
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.