Granted Patent
Utility
US 6,050,826 · App. 08/879,346
Infant simulation device and method therefore
Inventors:
Daniel Christianson, Judith M. Johnson, Roger E. Lidicker
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Jun 20, 1997
Inventors
Daniel Christianson
Judith M. Johnson
Roger E. Lidicker
Assignee (at issue)
Nasco International, 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.