Granted Patent
Utility
US 5,003,161 · App. 07/507,958
Combination of an igniter for a gas furnace and a control unit therefor
Inventor:
Frederick J. Geary
Patented Case
View Patent ↗
Granted: Mar 26, 1991
Filed: Apr 11, 1990
Inventor
Frederick J. Geary
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.