Granted Patent
Utility
US 5,352,099 · App. 07/990,667
Exhaust fan for water heater
Inventors:
William E. Anstine, Gregory P. Wagner, Michael P. Conner
Patented Case
View Patent ↗
Granted: Oct 4, 1994
Filed: Dec 14, 1992
Inventors
William E. Anstine
Gregory P. Wagner
Michael P. Conner
Assignee (at issue)
Ametek, 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.