Granted Patent
Utility
US 5,879,232 · App. 08/826,346
Exhaust fan
Inventors:
Robert J. Luter, II, Randall Bickel
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Mar 25, 1997
Inventors
Robert J. Luter, II
Randall Bickel
Assignee (at issue)
Tomkins 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.