Granted Patent
Utility
US 6,622,736 · App. 09/868,478
Water-soluble glass as corrosion protection for glassware in a dishwashing machines
Inventor:
Karlheinz Ulrich Gerhard Hahn
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Aug 15, 2001
Inventor
Karlheinz Ulrich Gerhard Hahn
Assignee (at issue)
Reckitt Benckiser LLC
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.