Granted Patent
Utility
US 5,400,962 · App. 08/144,148
System and method for reduced purge operation of a forced draft burner in a water heater
Inventors:
Richard Adams, Charles L. Adams
Patented Case
View Patent ↗
Granted: Mar 28, 1995
Filed: Oct 27, 1993
Inventors
Richard Adams
Charles L. 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.