Granted Patent
Utility
US 6,643,875 · App. 10/087,214
Inflatable mattress topper
Inventors:
Karen L. Boso, Michael Kehrmann, Chen Ching-Chin
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Mar 4, 2002
Inventors
Karen L. Boso
Michael Kehrmann
Chen Ching-Chin
Assignee (at issue)
Aero International Products, 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.