Granted Patent
Utility
US 4,519,907 · App. 06/562,649
Grit settling basin including vane pump
Inventor:
Thomas C. Rooney
Patented Case
View Patent ↗
Granted: May 28, 1985
Filed: Dec 19, 1983
Inventor
Thomas C. Rooney
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.