Granted Patent
Utility
US 6,613,158 · App. 10/162,352
Methyl ester-based chewing gum remover
Inventors:
Stephen F. Gross, David Sutton
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Jun 4, 2002
Inventors
Stephen F. Gross
David Sutton
Assignees (at issue)
Cognis Corporation
JohnsonDiversey, 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.