Granted Patent
Utility
US 4,688,280 · App. 06/921,140
Foldable playpen assembly with ease of portability
Inventors:
Louis M. Kohus, John V. Mariol
Patented Case
View Patent ↗
Granted: Aug 25, 1987
Filed: Oct 20, 1986
Inventors
Louis M. Kohus
John V. Mariol
Assignee (at issue)
KohusMariol, 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.