Granted Patent
Utility
US 4,965,022 · App. 07/465,409
Process for dissolving a gas in a liquid
Inventor:
Lawrence M. Litz
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Jan 16, 1990
Inventor
Lawrence M. Litz
Assignee (at issue)
Union Carbide Industrial Gases Technology 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.