Granted Patent
Utility
US 6,673,835 · App. 09/388,816
Method and composition for delivering zinc to the nasal membrane
Inventors:
Charles Hensley, Robert Davidson
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Sep 1, 1999
Inventors
Charles Hensley
Robert Davidson
Assignee (at issue)
Zicam, 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.