Granted Patent
Utility
US 6,802,638 · App. 10/002,445
Automatically adjusting annular jet mixer
Inventor:
Thomas E. Allen
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Oct 26, 2001
Inventor
Thomas E. Allen
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.