Granted Patent
Utility
US 6,072,121 · App. 09/211,464
Preset insert housing for underfloor raceways
Inventors:
John P. Penczak, Thomas R. Russo
Patented Case
View Patent ↗
Granted: Jun 6, 2000
Filed: Dec 14, 1998
Inventors
John P. Penczak
Thomas R. Russo
Assignee (at issue)
Walker Systems, 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.