The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 2004
Filed:
Jan. 29, 2002
Applicant:
Inventors:
Kevin Gerard Donahue, Littleton, MA (US);
Jack I. Raffel, Lexington, MA (US);
Robert John Caldicott, Natick, MA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A63H 3/000 ;
U.S. Cl.
CPC ...
A63H 3/000 ;
Abstract
This invention relates to an inexpensive toy track vehicle with optical sensors for use on a printed track, and a method for controlling the vehicle on a printed track. Specifically, this invention comprises a toy track vehicle having optical sensors, which operates on a printed track