Granted Patent
Utility
US 4,300,921 · App. 06/127,197
Apparatus and method for removing finely divided solids from gases
Inventor:
Denis G. Littrell
Patented Case
View Patent ↗
Granted: Nov 17, 1981
Filed: Mar 4, 1980
Inventor
Denis G. Littrell
Assignee (at issue)
REXNORD GMBH
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.