Granted Patent
Utility
US 6,766,856 · App. 10/345,543
Large particulate removal system
Inventor:
Richard Harvey McGee
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Jan 16, 2003
Inventor
Richard Harvey McGee
Assignee (at issue)
Schooner Petroleum Services, Inc.
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.