Patents by Inventor Robert John Caldicott

Robert John Caldicott has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Toy vehicle and method of controlling a toy vehicle from a printed track
    Patent number: 6695668
    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.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: February 24, 2004
    Inventors: Kevin Gerard Donahue, Jack I. Raffel, Robert John Caldicott
  • One material, one piece spill-proof closure
    Publication number: 20020158075
    Abstract: This invention relates to a closure for a drinking container and is particularly concerned with spill-proof closures, which remain in place while drinking. The inexpensive, effective and durable closures according to this invention are suitable for both disposable and nondisposable applications where both cost and performance are important.
    Type: Application
    Filed: March 25, 2002
    Publication date: October 31, 2002
    Inventors: Robert John Caldicott, Michael D. Lynch
  • Toy vehicle and method of controlling a toy vehicle from a printed track
    Publication number: 20020102910
    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.
    Type: Application
    Filed: January 29, 2002
    Publication date: August 1, 2002
    Inventors: Kevin Gerard Donahue, Jack I. Raffel, Robert John Caldicott