Patents by Inventor Stephen J. Birkmeier

Stephen J. 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
  • Mounting device
    Patent number: 5322254
    Abstract: A mounting device for a rigid member such as a stone or concrete slab is disclosed. The slab has an opening which receives a sleeve. A continuous locking member has an inner surface complementary with the sleeve and an outer inclined surface adjacent the slab. A ring member has a flange mounted on the top of the slab and a hub connected to the sleeve. An object such as a cemetery vase is mounted in the ring member. A connector joins the vase to the ring member.
    Type: Grant
    Filed: May 10, 1993
    Date of Patent: June 21, 1994
    Assignee: U.S. Metalcraft
    Inventor: Stephen J. Birkmeier