Granted Patent
Utility
US 4,285,662 · App. 05/934,533
Gas burner control mechanism
Inventors:
Jay R. Katchka, Marvin M. Graham
Patented Case
View Patent ↗
Granted: Aug 25, 1981
Filed: Aug 17, 1978
Inventors
Jay R. Katchka
Marvin M. Graham
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.