Granted Patent
Utility
US 6,709,578 · App. 10/001,927
Tilt-out frame for a filter screen
Inventor:
Stephen B. Wilcher
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Oct 31, 2001
Inventor
Stephen B. Wilcher
Assignee (at issue)
United States Filter Corporation
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.