Granted Patent
Utility
US 4,580,038 · App. 06/687,843
Indicating and control apparatus for a portable heating appliance
Inventor:
Thomas M. O'Loughlin
Patented Case
View Patent ↗
Granted: Apr 1, 1986
Filed: Dec 31, 1984
Inventor
Thomas M. O'Loughlin
Assignee (at issue)
BLACK & DECKER INC.
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.