Patents by Inventor Daniel C. Helsel

Daniel C. Helsel 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).

  • Painter's box
    Patent number: 6206183
    Abstract: A painter's box including provisions for painter's supplies and being supportable on an easel, the box including both a base and lid, the base including opposed top and bottom portions interconnected by opposed side portions, the bottom portion being provided with a groove for interconnection with an easel, the lid including a female connection area for interlocking with a male connector mounted on the easel.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: March 27, 2001
    Inventor: Daniel C. Helsel
  • Label box display case
    Patent number: D302912
    Type: Grant
    Filed: October 8, 1986
    Date of Patent: August 22, 1989
    Assignee: Daniel C. Helsel
    Inventor: Daniel C. Helsel