Patents by Inventor Virtudes Ramirez Lund

Virtudes Ramirez Lund 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).

  • Light blocking transparency assembly
    Patent number: 5763056
    Abstract: A light blocking transparency assembly comprises a single sheet of transparency film and two foldable opaque flaps. The flaps overlap when in their folded position. The inventive construction provides improved feedability of the assembly through a variety of imaging devices.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: June 9, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Virtudes Ramirez Lund, James Beard Svacha