Patents by Inventor David M. Birkmeier

David M. Birkmeier 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).

  • COLUMBARIUM
    Publication number: 20180223558
    Abstract: A columbarium including, among other things, a block having a top exterior surface including a top projection having a top projection tapered end, and a bottom exterior surface including a bottom slot having a bottom slot tapered receiver.
    Type: Application
    Filed: February 3, 2017
    Publication date: August 9, 2018
    Applicant: U.S. Metalcraft, Inc.
    Inventors: Stephen J. Birkmeier, David M. Birkmeier