Patents by Inventor Donald A. Butcher

Donald A. Butcher 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: 11945410
    Abstract: A ladder rack system may have a slide with a support flange and a spanning flange. The system may also have a ladder support member adapted to selectively receive a portion of the support flange therein. The system may also have a pivot bracket pivotally connected to the ladder support member. The pivot bracket may be adapted to selectively move the ladder support member.
    Type: Grant
    Filed: November 10, 2022
    Date of Patent: April 2, 2024
    Assignee: Adrian Steel Company
    Inventors: Elizabeth Elaine Willnow, Mark Anthoney Henry, Jr., Joshua Michael Gerez, Scott Donald Lee, Robert Michael Butcher
  • Patent number: D253450
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: November 20, 1979
    Assignee: Marquette Electronics, Inc.
    Inventors: Donald A. Butcher, Marvin L. Barbee
  • Patent number: D260466
    Type: Grant
    Filed: December 8, 1978
    Date of Patent: September 1, 1981
    Inventors: Donald A. Butcher, Marvin L. Barbee