Granted Patent
Utility
US 6,441,570 · App. 09/332,649
Controller for a model toy train set
Inventors:
Robert Grubba, Neil Young, Charles P. Horan, Martin Pierson
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Jun 14, 1999
Inventors
Robert Grubba
Neil Young
Charles P. Horan
Martin Pierson
Assignee (at issue)
Lionel LLC
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.