Granted Patent
Utility
US 5,509,348 · App. 08/307,806
Coffee maker for the preheating and keeping warm of cups
Inventors:
Manfred Klawuhn, Walter Hufnagl, Roland Muller, Gerhard Schafer, Andreas Peter
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Sep 27, 1994
Inventors
Manfred Klawuhn
Walter Hufnagl
Roland Muller
Gerhard Schafer
Andreas Peter
Assignee (at issue)
The Braun Corporation
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.