Patents by Inventor Ralph E. Lagergren

Ralph E. Lagergren 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).

  • Pivotal finger retainer for writing instrument
    Patent number: 5944433
    Abstract: A writing instrument has a short tubular body which contains a writing implement on each end. A tubular, elastic finger retainer has a small plastic plate which is pivotally mounted to the body. The user of the writing instrument inserts the middle finger of his writing hand through the retainer and slides it to a position between the first and second knuckles. The axis of the body is parallel to the axis of the retainer during use. The thumb of the user pushes outward and downward against the body while the index finger is placed on an upper side of the body. The writing instrument may be pivoted to the other writing implement by applying a twisting force to the body.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: August 31, 1999
    Inventors: John E. O'Mara, Ralph E. Lagergren
  • Writing instrument with finger retainer
    Patent number: D389185
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: January 13, 1998
    Assignee: North Star, L.P.
    Inventors: John E. O'Mara, Ralph E. Lagergren