Granted Patent
Utility
US 4,430,987 · App. 06/215,091
Infrared heating system and apparatus
Inventor:
Anton Heller
Patented Case
View Patent ↗
Granted: Feb 14, 1984
Filed: Dec 10, 1980
Inventor
Anton Heller
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.