Granted Patent
Utility
US 4,834,063 · App. 07/055,127
Food cooking oven with duct fingers and method
Inventors:
Yong Youn Hwang, Donald P. Smith
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: May 28, 1987
Inventors
Yong Youn Hwang
Donald P. Smith
Assignee (at issue)
STEIN & CO. GmbH
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.