Granted Patent
Utility
US 4,245,613 · App. 05/956,869
Tunnel oven
Inventors:
Harold D. Wells, Kelly Wells, Dennis M. Weinberg
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Nov 1, 1978
Inventors
Harold D. Wells
Kelly Wells
Dennis M. Weinberg
Assignee (at issue)
Black Body 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.