Granted Patent
Utility
US 5,746,914 · App. 08/736,713
Honey comb filter assembly and method of making the same
Inventors:
Scott Hanna, Kevin L. Burmeister
Patented Case
View Patent ↗
Granted: May 5, 1998
Filed: Oct 28, 1996
Inventors
Scott Hanna
Kevin L. Burmeister
Assignee (at issue)
Graphite Sales, Inc.
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.