Granted Patent
Utility
US 5,500,448 · App. 08/241,827
Recurrent aphthous ulcer treatment method
Inventors:
Diane Cummins, Franciscus J. Van Der Ouderaa, Michael Traudt
Patented Case
View Patent ↗
Granted: Mar 19, 1996
Filed: May 12, 1994
Inventors
Diane Cummins
Franciscus J. Van Der Ouderaa
Michael Traudt
Assignee (at issue)
Chesebrough-Pond's USA, division of Conopco, 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.