Granted Patent
Utility
US 6,113,311 · App. 09/407,055
Trench drain
Inventors:
Allen R. Becker, Michael A. Funari, Donald A. Kubiak
Patented Case
View Patent ↗
Granted: Sep 5, 2000
Filed: Sep 27, 1999
Inventors
Allen R. Becker
Michael A. Funari
Donald A. Kubiak
Assignee (at issue)
ZURN INDUSTRIES, LLC
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.