Granted Patent
Utility
US 6,348,658 · App. 09/572,189
Electrical raceway assembly
Inventors:
David R. Gutgsell, Scott Schwinghammer, Burton L. Siegal
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: May 17, 2000
Inventors
David R. Gutgsell
Scott Schwinghammer
Burton L. Siegal
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.