Granted Patent
Utility
US 6,422,151 · App. 09/770,954
Toy car with adjustable magnetic adhesion
Inventor:
Hubertus Maleika
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Jan 26, 2001
Inventor
Hubertus Maleika
Assignee (at issue)
STS Racing GmbH
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.