Granted Patent
Utility
US 5,934,073 · App. 09/078,597
Auxiliary heating for motor vehicles with internal combustion engines
Inventors:
Jurgen Gieshoff, Egbert Lox, Thomas Kreuzer
Patented Case
View Patent ↗
Granted: Aug 10, 1999
Filed: May 14, 1998
Inventors
Jurgen Gieshoff
Egbert Lox
Thomas Kreuzer
Assignee (at issue)
Degussa AG
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.