Granted Patent
Utility
US 4,338,113 · App. 06/245,418
Method for controlling particulate emissions
Inventors:
Charles M. Hohman, Mark A. Propster
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Mar 19, 1981
Inventors
Charles M. Hohman
Mark A. Propster
Assignee (at issue)
Owens-Corning Fiberglas Corp.
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.