Granted Patent
Utility
US 6,214,072 · App. 09/061,243
Ceramic coated filter medium and internal support
Inventors:
Gerhard Kappeler, Wolfgang Peukert, Mike Schmitt
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Apr 17, 1998
Inventors
Gerhard Kappeler
Wolfgang Peukert
Mike Schmitt
Assignee (at issue)
Menardi-Mikropul LLC
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.