Granted Patent
Utility
US 6,042,816 · App. 09/136,823
Enhanced antiperspirant salts stabilized with calcium and concentrated aqueous solutions of such salts
Inventor:
Yan-Fei Shen
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Aug 19, 1998
Inventor
Yan-Fei Shen
Assignee (at issue)
The Gillette Company 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.