Patents by Inventor Robert Fagan, deceased

Robert Fagan, deceased 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).

  • Masking device for overhead projector
    Patent number: 5112123
    Abstract: A device for selectively masking portions of transparent visual material to be projected by an overhead projector onto a screen including an opaque flexible sheet attached at one side to the overhead projector and at the other to a rod portion of a spool. When not in use the opaque flexible sheet is wound onto the spool. A portion, or all, of the transparent material may be blocked from projection by rolling the spool over the transparent material so that the opaque flexible sheet covers the undesired material.
    Type: Grant
    Filed: May 24, 1991
    Date of Patent: May 12, 1992
    Inventors: Robert Fagan, deceased, by Ellen Fagan, personal administrator