Granted Patent
Utility
US 4,276,162 · App. 06/168,694
Flame resistant sump assembly
Inventor:
Michael E. Wilson, Jr.
Patented Case
View Patent ↗
Granted: Jun 30, 1981
Filed: Jul 14, 1980
Inventor
Michael E. Wilson, Jr.
Assignee (at issue)
Racor 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.