Granted Patent
Utility
US 4,736,729 · App. 07/021,975
Airflow system for a gas downdraft range
Inventor:
Stanley H. Beach
Patented Case
View Patent ↗
Granted: Apr 12, 1988
Filed: Mar 5, 1987
Inventor
Stanley H. Beach
Assignee (at issue)
Maytag Corporation
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.