Granted Patent
Utility
US 4,803,973 · App. 07/132,809
Grate for coal stove
Inventor:
Dane P. Harman
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Dec 14, 1987
Inventor
Dane P. Harman
Assignee (at issue)
HARMAN STOVE COMPANY
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.