Granted Patent
Utility
US 6,709,489 · App. 10/003,688
Microwave regenerated diesel particulate trap
Inventors:
Frank Ament, Eugene V. Gonze
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Nov 15, 2001
Inventors
Frank Ament
Eugene V. Gonze
Assignee (at issue)
General Motors 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.