Granted Patent
Utility
US 6,299,072 · App. 09/473,151
Toy train track connector
Inventor:
David Burns
Patented Case
View Patent ↗
Granted: Oct 9, 2001
Filed: Dec 28, 1999
Inventor
David Burns
Assignee (at issue)
Learning Curve Toys 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.