Granted Patent
Utility
US 6,431,063 · App. 09/738,636
Embossing press for producing embossed seams
Inventors:
Rainer Dolfel, Stephan Frank, Joachim Freiheit, Hans Olthaus
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Dec 18, 2000
Inventors
Rainer Dolfel
Stephan Frank
Joachim Freiheit
Hans Olthaus
Assignee (at issue)
Melitta Haushaltsprodukte GmbH & Co. KG
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.