Granted Patent
Utility
US 5,968,352 · App. 09/169,570
Gas contact tank
Inventor:
Lee C. Ditzler
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Oct 9, 1998
Inventor
Lee C. Ditzler
Assignee (at issue)
Novazone
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.