Granted Patent
Utility
US 5,413,279 · App. 08/095,813
Vehicle heating
Inventors:
Hans-Reiner Quaas, Helmut Keinert
Patented Case
View Patent ↗
Granted: May 9, 1995
Filed: Jul 2, 1993
Inventors
Hans-Reiner Quaas
Helmut Keinert
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.