Granted Patent
Utility
US 6,517,232 · App. 09/592,478
Mixing systems
Inventor:
David Blue
Patented Case
View Patent ↗
Granted: Feb 11, 2003
Filed: Jun 9, 2000
Inventor
David Blue
Assignee (at issue)
Becker Underwood, 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.