Granted Patent
Utility
US 4,486,172 · App. 06/193,686
Oven and method for heating thermoplastic articles
Inventor:
Leonard A. Dunning
Patented Case
View Patent ↗
Granted: Dec 4, 1984
Filed: Oct 3, 1980
Inventor
Leonard A. Dunning
Assignee (at issue)
ALLIED CONSULTING, 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.