Granted Patent
Utility
US 4,846,671 · App. 07/280,664
Integral spark ignited gas burner assembly
Inventor:
David J. Kwiatek
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Dec 6, 1988
Inventor
David J. Kwiatek
Assignee (at issue)
Harper-Wyman 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.