Granted Patent
Utility
US 5,855,873 · App. 08/957,904
Stable solution of zinc and bicarbonate ions
Inventor:
Benny S. Yam
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Oct 27, 1997
Inventor
Benny S. Yam
Assignee (at issue)
Church & Dwight Co., Inc.
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.