Granted Patent
Utility
US 5,283,393 · App. 07/893,794
Armored flexible electrical conduit with fittings
Inventor:
Frank Guginsky
Patented Case
View Patent ↗
Granted: Feb 1, 1994
Filed: Jun 4, 1992
Inventor
Frank Guginsky
Assignee (at issue)
Berger 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.