Granted Patent
Utility
US 5,884,634 · App. 08/990,977
Mascara container and dispenser
Inventors:
Robert J. Sheffler, Charles Chang
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Dec 15, 1997
Inventors
Robert J. Sheffler
Charles Chang
Assignee (at issue)
Charles Chang
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.