Patents by Inventor William B. Lammersen

William B. Lammersen 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).

  • Recreational device
    Patent number: 4009880
    Abstract: Outlines or patterns of human forms are represented in predetermined, contiguous relation to one another on a flat horizontal surface or sheet of material, each outline being distinguishable one from another in such a way as to permit one or more persons to place themselves in different positions represented by the outlines or to advance from one outline to another.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: March 1, 1977
    Assignee: Patterns to Play By, Inc.
    Inventor: William B. Lammersen
  • Bed sheet or the like
    Patent number: D247407
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: March 7, 1978
    Assignees: James E. Clabaugh, Craig H. Hooper, D. Kent Hooper
    Inventor: William B. Lammersen