Granted Patent
Utility
US 5,692,945 · App. 08/716,495
Toy producing simulated eruption
Inventors:
Caleb E. Crowell, George Hom, Laura Patterson
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Sep 18, 1996
Inventors
Caleb E. Crowell
George Hom
Laura Patterson
Assignee (at issue)
Educational Design, 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.