Patents by Inventor Albert C. Engelmann

Albert C. Engelmann 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).

  • Patent number: 4578318
    Abstract: Intricate lightweight metal ornaments having an aesthetically pleasing laciness. Such ornaments are produced in a sequence of metal forming and coating steps utilizing an etching process to permit an almost infinite variety of designs to be produced without the use of dies or molds. A defined sequence of etches and partial etches of prescribed depths and dimensions into opposite sides of a metal sheet, typically brass, first produces a metal form of intricate edge and surface patterns that have qualities resembling the fine needlework of lace. To complete the decorative impression, the etched form is subsequently coated with a thin, adherent but flexible decorative layer that enhances the impression of laciness. The resulting ornament is intricate, pretty, easy to care for, durable, and can be bent without loss of the adherence of the coating.
    Type: Grant
    Filed: October 17, 1984
    Date of Patent: March 25, 1986
    Assignee: Tamerlane Corporation
    Inventors: Donald C. Schoch, Albert C. Engelmann