Granted Patent
Utility
US 4,840,288 · App. 07/239,167
Compact case with irreversible hinge
Inventors:
William Lunderman, David Seidler
Patented Case
View Patent ↗
Granted: Jun 20, 1989
Filed: Aug 31, 1988
Inventors
William Lunderman
David Seidler
Assignee (at issue)
Revlon
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.