Granted Patent
Utility
US 6,076,543 · App. 08/965,077
Gas handling device
Inventor:
Paul Johnson
Patented Case
View Patent ↗
Granted: Jun 20, 2000
Filed: Nov 6, 1997
Inventor
Paul Johnson
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.