Granted Patent
Utility
US 5,437,249 · App. 08/143,937
Combination burner and flue gas collector for water heaters and boilers
Inventors:
Charles L. Adams, Richard Adams
Patented Case
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Granted: Aug 1, 1995
Filed: Oct 27, 1993
Inventors
Charles L. Adams
Richard Adams
Assignee (at issue)
PVI 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.