Granted Patent
Utility
US 6,808,306 · App. 10/366,483
Mixing vessel apparatus and method
Inventor:
Ronald J. Weetman
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Feb 14, 2003
Inventor
Ronald J. Weetman
Assignee (at issue)
SPX 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.