Granted Patent
Utility
US 5,165,970 · App. 07/661,313
Method of coating honeycomb bodies with finely divided solid matter
Inventors:
Felix Schmidt, Wilfried Baumgartner, Reinhard Manner, Gerhard Birtigh, Ewald Dittrich
Patented Case
View Patent ↗
Granted: Nov 24, 1992
Filed: Feb 27, 1991
Inventors
Felix Schmidt
Wilfried Baumgartner
Reinhard Manner
Gerhard Birtigh
Ewald Dittrich
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.