Granted Patent
Utility
US 4,931,011 · App. 07/321,959
Control and method for operating a vaporizer burner
Inventors:
Peter Reiser, Erich Kenner
Patented Case
View Patent ↗
Granted: Jun 5, 1990
Filed: Mar 10, 1989
Inventors
Peter Reiser
Erich Kenner
Assignee (at issue)
J. Eberspacher
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.