Patents by Inventor Doris C. McCosker

Doris C. McCosker 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).

  • Patent number: 4658840
    Abstract: A strip for facilitating the selective coloring of hair. A thin sheet of flexible elastic plastic material has a plurality of sets of openings. The openings are used to hold strands of hair which, in turn, hold the sheet to the scalp.
    Type: Grant
    Filed: February 27, 1981
    Date of Patent: April 21, 1987
    Inventor: Doris C. McCosker
  • Patent number: 4038979
    Abstract: In one embodiment of the present invention, a frame defining a face mask is disclosed having a flexible transparent disposable filter material removably retained about the frame. Another embodiment of the present invention discloses an elastomeric frame which tapers to a feathered edge at the periphery intended to contact the face, said elastomeric frame engaging a transparent facial insert, which insert includes means for removably retaining filter material. The mask is further provided with a disposable sanitary perforated bag-shaped web which envelops the frame and transparent facial insert to protect the exposed surfaces thereof from contamination while allowing the user to breathe freely.
    Type: Grant
    Filed: August 27, 1975
    Date of Patent: August 2, 1977
    Inventor: Doris C. McCosker