Patents by Inventor Sandra L. Bleser

Sandra L. Bleser 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).

  • Inflatable play pen
    Patent number: 4815153
    Abstract: In one embodiment, an inflatable play pen composed of an interconnected mattress portion, upper ring portion, and spaced apart support column portions supporting the ring portion above the mattress portion and with open netting or mesh material between the portions so that a child on the mattress portion is safely contained in a ventilated area on the mattress which has a lower central portion bounded by a peripheral portion somewhat higher than the lower central portion.
    Type: Grant
    Filed: January 19, 1988
    Date of Patent: March 28, 1989
    Inventors: Sandra L. Bleser, Robert D. Bleser