Patents by Inventor Cornelius Lorenzen, Jr.

Cornelius Lorenzen, Jr. 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).

  • Pilfer proof display unit
    Patent number: 4074637
    Abstract: The disclosure is of a pilfer-proof display unit particularly useful for security of small articles such as rings and like jewelry while permitting a potential customer free access to the handling of the article.
    Type: Grant
    Filed: April 9, 1976
    Date of Patent: February 21, 1978
    Inventor: Cornelius Lorenzen, Jr.