Granted Patent
Utility
US 6,394,149 · App. 09/798,224
Vapor control
Inventor:
Neal Parsons
Patented Case
View Patent ↗
Granted: May 28, 2002
Filed: Mar 2, 2001
Inventor
Neal Parsons
Assignee (at issue)
Marathon Ashland Petroleum LLC
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.