Granted Patent
Utility
US 5,990,174 · App. 08/063,330
Aqueous composition
Inventor:
William John Henry
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: May 19, 1993
Inventor
William John Henry
Assignee (at issue)
Zeneca Limited
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.