Patents by Inventor Walter Rosso

Walter Rosso 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).

  • Instrument for writing and drawing
    Patent number: 4872774
    Abstract: A writing and drawing instrument comprises a main body of elongate shape having a first and a second writing end, a first and a second auxiliary body of elongate shape each of which is provided at its respective ends with a writing element, each of these bodies being mounted to rotate about an axis transverse to the main body in order to allow the alternative positioning of one of the two writing elements at one of the writing ends of the main body, each of the auxiliary bodies being able to slide longitudinally with respect to the main body between a first position in which the writing element positioned at the writing end is covered by the main body and a second position in which the writing element projects externally from the main body thereby allowing writing.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: October 10, 1989
    Assignee: R.P.R. Righella di W. Rosso & C. S.a.s.
    Inventor: Walter Rosso