Patents by Inventor Carl B. Sundberg

Carl B. Sundberg 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).

  • Key holder
    Patent number: 5367896
    Abstract: A key holder is provided comprising a ring shaped element formed from a resilient coil of material wherein at least one end of the coil used to form the key holder extends into the area defined by the ring so as to form a push bar on to which a key or other such element may be threaded so as to facilitate adding or removing keys onto or from the key holder.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: November 29, 1994
    Inventor: Carl B. Sundberg