Granted Patent
Utility
US 4,538,049 · App. 06/596,382
Toaster oven
Inventor:
William D. Ryckman, Jr.
Patented Case
View Patent ↗
Granted: Aug 27, 1985
Filed: Apr 3, 1984
Inventor
William D. Ryckman, Jr.
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.