Granted Patent
Utility
US 5,017,129 · App. 07/475,964
Porous ceramic gas burner
Inventors:
Wallace W. Velie, William T. Lewis, Donald C. Haney
Patented Case
View Patent ↗
Granted: May 21, 1991
Filed: Feb 6, 1990
Inventors
Wallace W. Velie
William T. Lewis
Donald C. Haney
Assignee (at issue)
Scheu Manufacturing Company
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.