Granted Patent
Utility
US 4,641,029 · App. 06/638,758
Process and apparatus for heating ionizing strips
Inventors:
Karl-Eugen Habfast, Gunter Kappus, Horst Rache, Bernd Windel
Patented Case
View Patent ↗
Granted: Feb 3, 1987
Filed: Aug 8, 1984
Inventors
Karl-Eugen Habfast
Gunter Kappus
Horst Rache
Bernd Windel
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.