Granted Patent
Utility
US 6,137,057 · App. 09/082,128
Electrical raceway assembly
Inventor:
David R. Gutgsell
Patented Case
View Patent ↗
Granted: Oct 24, 2000
Filed: May 20, 1998
Inventor
David R. Gutgsell
Assignee (at issue)
Ditto Sales, 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.