Patents by Inventor John C. Hobbins

John C. Hobbins 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: 5060896
    Abstract: A device for adjusting the seat height (S) of a chair (2) comprising four leg extenders (A, B, C, D). Each has an aluminum extrusion leg extension member (11) with a rebate (12) for partially accommodating a leg (1) to be extended. Located at one of a plurality of slots (21) along the member, a leg end support (18) is engaged and located by a locking member (23). Above the support (18), an overcentre buckle clamp (39), clamps the leg (1) to its extension member (11).
    Type: Grant
    Filed: November 7, 1989
    Date of Patent: October 29, 1991
    Inventor: John C. Hobbins