Granted Patent
Utility
US 5,002,038 · App. 07/448,935
Burner construction and method of making the same
Inventor:
Fred Riehl
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Dec 12, 1989
Inventor
Fred Riehl
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
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.