Patents by Inventor Victoriano M. Ortega

Victoriano M. Ortega 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).

  • Hand trolley
    Patent number: 4368896
    Abstract: A trolley 10 for negotiating stairs with three overlapping pairs of wheels 11, 18, 19 the tangential plane 20 of which is fixed acute angle of about 30.degree. to the back 13 of the frame 12. In normal use the wheels 18, 19 are off the ground so that trolley 10 can be easily maneuvered on front wheels 11.
    Type: Grant
    Filed: October 24, 1980
    Date of Patent: January 18, 1983
    Inventor: Victoriano M. Ortega