Patents by Inventor Allan N. Black

Allan N. Black 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).

  • Scaffold anchorage socket
    Patent number: D270476
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: September 6, 1983
    Assignee: Guest Keen & Nettlefolds (Aust) Limited
    Inventor: Allan N. Black
  • Scaffold anchorage lug
    Patent number: D270572
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: September 13, 1983
    Assignee: Guest Keen & Nettlefolds (Aust) Limited
    Inventor: Allan N. Black
  • Scaffold brace anchorage socket
    Patent number: D270573
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: September 13, 1983
    Assignee: Guest Keen & Nettlefolds (Aust) Limited
    Inventor: Allan N. Black
  • Scaffold spring wedge
    Patent number: D270574
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: September 13, 1983
    Assignee: Guest Keen & Nettlefolds (Aust) Limited
    Inventor: Allan N. Black