Granted Patent
Utility
US 4,544,388 · App. 06/573,277
Apparatus for periodically oxidizing particulates collected from exhaust gases
Inventors:
Vemulapalli D. N. Rao, Wallace R. Wade
Patented Case
View Patent ↗
Granted: Oct 1, 1985
Filed: Dec 27, 1983
Inventors
Vemulapalli D. N. Rao
Wallace R. Wade
Assignee (at issue)
Ford Motor Company
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.